2.8.9 – Legendary Season, rework of KvK, Medusa Chaos immortal, and much more

v2.8.9 is the “Legendary Season launch” patch.
- Legendary Season [Legion of Frostborne] officially opens (servers that finished Conquest P5+ can enter).
- New Professional Contract System (you pick a role: Master Craftsman / Alchemist / Fighting Master).
- New Altar Stone building + Energy Core city mechanic.
- Possible for to craft Unit Boost Items.
- New Chaos Immortal Medusa (archer, ranged, control-and-DPS).
- New legendary aura skill Divine Blessing (ultimate damage reduction by 40%).
- A bunch of optimizations: Immortal specialization pacing, Elemental Domain sim mode, migration rules, Forge gold buff, etc.
These changes reads to me like they are going to try and make Legendary Season less “who has more whales” and more “who can actually run a coordinated alliance with defined roles.” If their nail these changes, it can be extremely good for the health of the game as it will give more purpose for everyone.
Full official patch notes here
1. Professional Contract System – Roles Inside the Alliance

This is the backbone of Legendary Season. Instead of everyone just being “a fighter”, you pick a profession for the whole season:
- Master Craftsman – produces Altar Stone materials and Unit Boost items.
- Alchemist – actually builds the Altar Stones and scales their stats via their talent tree.
- Fighting Master – gets combat buffs and tasks focused on actually killing things.
How it works in practice:
- After your alliance registers for Legion of Frostborne, there’s a preparation period where everyone chooses their contract.
- You can swap during prep, but once war starts your profession is locked for the season.
- If you don’t pick anything in time, the system dumps you into Fighting Master by default.
- Each contract type has limited slots per alliance, so R5/R6 will be playing Tetris with who gets what.
- Every contract has its own talent tree, which you unlock using Contract Crystals from Frostborne achievements and packs.
- Doing your contract tasks earns Contract Gold, which you spend in the end-of-season Contract Shop. Contract Gold resets each season / migration; Contract Gems from the Expedition Battle Pass don’t reset and are permanent.
What to expect when it goes live
The big shift is: your value to the alliance isn’t just your march anymore.
If I was R5, I’d expect:
- A bit of chaos the first prep phase while everyone fights over Fighting Master slots.
- Good alliances will pre-assign roles in Discord:
- Alt accounts / active low spenders → Master Craftsman.
- Players online a lot with decent game sense → Alchemist (you’re handling a key, limited building).
- Frontline whales / strong mid-high spenders → Fighting Masters.
If you’re a normal fighter and you log in late, don’t be surprised if the Fighting Master quota is already full and you’re “forced” into Craftsman or Alchemist. That’s just how this system is designed.
2. New Battlefield Flow – Energy Core & Altar Stones
Energy Core – third form of cities
Cities and checkpoints in Frostborne now have a third form, the Energy Core, which appears when:
- Wall Durability = 0
- Defender count = 0
And the important part:
👉 Only Altar Stones can attack the Energy Core. Lord troops can’t finish the job.
If multiple alliances from the same Federation are involved, the city/checkpoint goes to the alliance that actually reduces the Energy Core to 0, not the one that did the most normal damage earlier.
So sniping with an Altar Stone will be a thing.
Altar Stones – new alliance building
Altar Stones are auto-defense / offense buildings, built by the alliance and not permanent. Key mechanics:
Production & placement
- Master Craftsmen manufacture materials.
- Alchemists use those materials to produce Altar Stones.
- R6/R5 choose where to place them.
- Can only be placed within alliance vision, and they have a limited duration; if they’re not destroyed they still vanish when time’s up.
- The stone’s stats depend on the Alchemist’s talent levels at production time.
Attack behavior
- R5/R6 can manually select allowed targets (system-defined – not individual Lord troops).
- Alliance members can garrison inside the Altar Stone to buff its single-hit damage.
- Auto-attack priority is: Energy Core > enemy Altar Stones > Lord Castle > Lord Troops (marching & gathering).
Defense & removal
- You cannot hit an enemy Altar Stone with troops.
- Only other Altar Stones can destroy them.
- They expire after a time limit anyway.
How this will actually feel in KvK
Sieges are going to feel like tower wars now:
- You’ll break the city like normal, then it becomes a “who controls altars around the Energy Core” mini-game.
- Defenders can drop defensive Altars that auto-hit your castles/troops and protect their own altars.
- Attackers will try to chain offensive Altars into range of the city so they can snipe the core before another alliance does.
If your alliance is slow on Craftsman/Alchemist coordination, you’ll get out-Altared by more organized groups, even if your raw troops are stronger.
Honestly, this punishes “lazy” alliances that just stack whales and hope for the best.
3. Unit Boost Items – Seasonal Power Spikes
Unit Boost Items are new limited-use stat boosters for your troops. Think “temporary extra juice” for a certain number of expeditions.
Important bits:
- They only work in Legendary Season Frostborne, and only in the season they’re produced; everything gets wiped at season end.
- Each item has a set number of charges; you manually activate them, and when charges run out you need a new item.
- They are obtained via:
- Master Craftsman production, and
- Gift packs (whales, hello).
Distribution rules:
- Items produced by alliance members are auto-mailed at 00:00 UTC to players who were active on the KvK map the day before.
- If the total produced is too low to give at least 1 per active member, they go to the Alliance Warehouse until there’s enough for a per-capita distribution.
- After each daily distribution, leftover scraps stay in the warehouse and count into the next day’s distribution.
If I were leading, I’d probably:
- Prioritize giving boosts to:
- Rally leaders
- Main garrison players
- And a few key mid-spenders who are always online.
- Track who’s actually showing up on the map; dead weight shouldn’t be soaking the benefits.
4. Lord Contracts – Talents, Crystals, and Seasonal Currency
On top of just “picking a role,” each Contract has progression baked in.
- Each profession gets its own talent tree.
- You unlock nodes using Contract Crystals from:
- Legion of Frostborne achievement tasks
There are two currencies tied to Contracts:
- Contract Gold
- Earned by doing profession-specific tasks (producing materials, getting Altars, attacking Lords, etc.).
- Used at End-of-Season Contract Shop.
- Has daily caps and resets every season or when you migrate.
- Contract Gems
- Obtained from Expedition Battle Pass.
- Permanent, not deleted between seasons.
- Used to exchange for items in shops.
What this means for you
The grind changes shape:
- If you care about the Contract Shop, you can’t “AFK-bot” your profession. You’ll want to actually do the tasks regularly to hit the daily cap.
- Gems are the long-term progression; Gold is short-term seasonal income.
Free-to-play players should be pretty happy that a bunch of new skill/contract shop items are grindable, as that video you quoted also points out. How heavily it’s gated behind Battle Pass / packs we’ll only fully see live, but the structure is clear.
5. New Immortal – Medusa (Chaos Archer)

Medusa is finally official: Chaos, ranged, archer type.
Skill: Gaze of Silence
Passive part:
- PASSIVE ability (looks insanely strong): After battle starts, every 6 seconds she deals physical damage (x% up to 500%) to all enemies as passive skill damage.
- Targets with Mark of Revenge take 30% more damage.
Active part:
- Cleanses all debuffs from herself.
- Fires a petrification beam at all enemies with up to 50% chance at level 8 to petrify for 3 seconds.
- If a target resists petrify, they instead get Mark of Revenge for 3 seconds, making them take boosted passive damage. infinitykingdom.gtarcade.com
Exclusive Treasure – Twin Serpent Bracelet
- Her artifact just extends Mark of Revenge duration by +3s. Powerful indeed.
Early thoughts
From that player video you shared:
- The passive feels very similar to Elizabeth’s “heart marker then extra damage” style – basically Elizabeth 2.0 but Chaos/archer flavored.
- The active is strong on paper (cleanse + mass petrify), but 50% chance can feel godlike one match and useless the next.
- A big unknown is how petrify interacts with Fighting Master / new Contract buffs – whether there are immunities that counter her hard or not.
My personal take for now:
- She looks like a control + sustained AoE hybrid, not a one-shot nuker like Apollo.
- Whether she’s “better than Apollo” is going to depend a lot on:
- How common Divine Blessing becomes (it hits ult damage, not necessarily Medusa’s passive ticks).
- How Chaos lineups adapt to fit her alongside Ares / Loki / others.
Right now she’s a question mark, but definitely not ignorable. I think that she wont be amazing right out of the gates, but I think that once players unlock the new skills in Legendary Season, with e.g. massively reduced crit damage taken, Divine Blessing (below), and more, then you are going to see a shift away from big bursty meta builds into something much more suited for Medusa to climb to the top of the tier ladders. Oh well, time shall tell!
6. New Legendary Aura: Divine Blessing
Divine Blessing is a new legendary aura skill in the Tower of Knowledge.
Its effect:
Reduces Ultimate Skill damage received by all allies by X% (up to 40% at max level).
So it doesn’t care about normal skills or on-hit effects – it specifically reduces damage from ultimate skills.
The video commentary you included nails the main point:
- It’s basically a hard check on nukers that rely on gigantic ultimates like Khan, Apollo, Himiko, Loki, etc.
- It doesn’t affect Immortals whose main damage isn’t “ultimate skill damage,” like Alexander or Ares basic/chain damage.
If I’m building competitive marches, I’m 100% targeting this skill. It’s like adding a layer of armor over your whole team against burst comps.
I foresee Medusa Ares builds in the future, getting Petrification as a control – perhaps even bringing life to a Medusa, Ares build for control, massive defence skills stacking and just grinding down the enemies with a ton of damage instances over time.
7. System Optimizations & QoL Stuff
These aren’t as flashy but they matter long-term.
Immortal Specialization unlock pacing
Specialization unlock and caps now depend on server phase:
- After 30 days: unlocks, skills up to level 2.
- S1 Season: up to level 5.
- S2 Season: up to level 8.
This stops brand new servers from turbo-rushing specialization way too early and gives a smoother power curve.
Throne of the Supreme – temporary closure
Throne of the Supreme is being shut down temporarily for upgrades. Details on reopening will come via in-game announcements.
Realistically, expect:
- No Throne cycles for a while.
- Hopefully some tweaks to either matchmaking or the shop, since it’s been stale forever.
Elemental Domain – Simulation & Ranking
Two changes here:
- Simulation Challenge Mode:
- You get 3 attempts to test formations against the current boss.
- These don’t burn your real progress attempts; it’s purely for testing.
- Dungeon Ranking:
- Daily leaderboard shows top 10 Lords by damage.
Legion’s Vendor & Contract Shop rules
Two big notes:
- After server migration, you cannot access Legion’s Vendor or Contract Shop. So spend your stuff before you jump.
- Shop opening times:
- If you participated in the current Frostborne (joined during registration and stayed to settlement):
- Expedition & Contract Shops open early during settlement and last 5 days.
- If you didn’t participate:
- Shops open after the server war period ends, also 5 days.
- If you participated in the current Frostborne (joined during registration and stayed to settlement):
So if you merc into an alliance after KvK ends, don’t expect shop access that season.
Other QoL tweaks
- Elemental Bond auto-flip improved (no more fighting the UI as much).
- Individual Talent Point removal – you can remove specific talents instead of resetting the whole tree.
- Voucher spending confirmation – first time you buy with vouchers each day you get a reminder popup, with a “don’t remind me today” toggle.
Small stuff, but they add up.
Legendary Season entry rules
After this patch, any server that has completed Conquest P5+ can enter Legendary Season via the standard flow. i
Server Migration Command Power rework
Command Power is now calculated as
- The average of the highest troop power of the top players on your server, updated daily at 00:00 UTC.
- When using Special Immigration, your highest troop power is compared against that Command Power.
Forge – Gold conversion buff
Forge now has better resource → Gold conversion, especially before level 50, where resource costs are substantially reduced.
This is nice for:
- Newer players trying to catch up.
- Alt accounts.
- Anyone constantly starving for gold to keep upgrading.
8. Conclusion Summary – The Bottom Line
Very quickly:
- Legendary Season turns Frostborne into a role-based, alliance-planning game instead of pure troop smashing. I have been calling for this for years now, so I am very excited to see if the way they are doing it now will work out.
- Contracts + Altar Stones + Unit Boosts form a triangle: production → structures → battlefield control. If your alliance ignores any of these, you’ll feel it.
- Medusa brings Chaos archer control with a mix of petrify and marked damage – potentially strong, but still a big question mark until people actually field her.
- Divine Blessing is likely to become a staple defensive aura against burst ult comps.
- QoL and system tweaks (Elemental Domain sim, specialization pacing, migration Command Power, Forge gold) smooth out a lot of long-standing pain points.
Bottom line:
If you treat Legendary Season like old Frostborne, you’ll get punished. If your alliance leans into roles, coordinates Altar production/placement, and uses boosts/Contracts smartly, you’re going to have a big edge even without being the whale kingdom.
Published: 08-11-2025



