Myrahk’s progression path to chaos immortals (what to buy and when) to obtain, develop and max chaos immortals

Introduction

One of the biggest challenges with Chaos progression in Infinity Kingdom is not understanding how to get fragments—it’s understanding what those fragments actually cost over time.

Most guides break systems down individually. You’ll see the value of seasonal events, the efficiency of battle passes, or the weekly output of Chaos Roulette. But what players really need is a way to connect those systems into a real progression path—one that reflects how an account actually develops over weeks and months.

This guide focuses on exactly that.

Instead of looking at isolated systems, we build a practical benchmark model using a realistic mix of progression sources:

• Monthly seasonal passes (with typical token income and some free value)
• Fully completed Peak + Legendary Battle Passes
• Standard-cost systems like Chaos Roulette and Rune Factory filling the remaining gaps

To make this concrete, we use Fu Fei as the reference immortal. She is one of the most commonly targeted Chaos immortals and, importantly, sits at a favorable 450 Grail seasonal price, making her a strong example of how efficient progression can look when systems are layered correctly.

From there, we break down the three key Chaos milestones:

• 1640 fragments (usable immortal with all stars unlocked + artifact slot)
• 3830 fragments (completed talent level 8 all nodes min. level)
• 6390 fragments (full optimization, complete talent tree with all nodes)

And, more importantly, what it actually costs to reach each of them under realistic conditions.

This is not a perfect-case scenario or a best-case outcome. It is a structured, experience-based estimate designed to answer a simple question:

If you approach Chaos progression correctly, what should you expect to spend—and where does that cost actually come from?

By the end of this guide, you should have a clear understanding of how different systems combine, where your efficiency comes from, and how to plan your Chaos builds with far more precision.

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TL;DR — Efficient Chaos Progression

• Take all free value first
  → Seasonal rewards, free passes, and event participation are your highest efficiency. Skipping them means paying more later.
• Use discounted systems next
  → Seasonal pass + Koi packs lower your average fragment cost before moving to expensive systems.
• Build around battle passes
  → Peak + Legendary are your core efficiency (~$0.25/fragment). This is your baseline for progression.
• Use Roulette + Rune Factory to finish
  → Roulette = steady weekly progress
  → Rune Factory = flexible, on-demand spending
• Think in breakpoints, not maxing
  → 1640 = usable
  → 3830 = complete build
  → 6390 = full optimization

Progress efficiently by stacking cheap sources first, then using standard-cost systems only for what’s left.

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My Method of Chaos Progression — using Fu Fei as a Realistic Example

Fu Fei is the cleanest example to use here, simply because she is the most sought after chaos immortal given her usefulness in almost any build setup.

Note that in seasonals she is prices at 450 Grails which makes her one of the cheaper Chaos immortals to benchmark (if you are doing Anubis or something else, then your efficiency in seasonals will be less than what I describe below. If you do Loki it will be more efficient given the differentiations of seasonal events).

Breakpoints / Thresholds

You do not really plan Chaos progression around the vague idea of “maxing an immortal.” In practice, players plan around clear breakpoints:

• 1640 fragments → usable (stars + artifact unlock)
• 3830 fragments → complete build (talent level 8)
• 6390 fragments → full optimization (max talent nodes)

The useful question is not just how many fragments those tiers require, but what they actually cost when you build through the systems the game gives you over time.

For this benchmark, Fu Fei is a very good example because she is one of the most desirable Chaos immortals for many accounts and, importantly, she sits at a discounted seasonal price of 450 Grails for 80 fragments. That makes her significantly more efficient in seasonals than newly released Chaos immortals or standard 750-Grail Chaos options.

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6-month progression window

To keep this realistic, we are using a 6-month benchmark model, you may want a shorter timeline, making it more expensive as you lean less into monthly efficient events and more into weekly ones, this is simply my acceptable timeframe for developing chaos immortals. Real progress will also vary slightly depending e.g. Jackpot luck with seasonal Koi purchases, and how consistently the player completes passes. The purpose here is not to predict an exact result, but to explain in a practical way, how I approach chaos immortal progression.

In this model, we assume the following over 6 months:

• You buy the seasonal pass each month, giving 170 tokens per month
• You also get enough additional seasonal value through free tokens, login rewards, Koi, and general event participation to buy one extra 80-fragment Fu Fei pack over the full period
• You buy and fully complete both the Peak and Legendary Battle Pass every month
• Any fragments still needed are purchased through Chaos Roulette and/or Rune Factory at the standard benchmark of ~$0.80 per fragment

Read more here.

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Seasonals – only high efficiency spending

First up we want to use the seasonals for max efficiency, I assume we get one per month which seems to be how the seasonal calendar looks given recent years of experiance. The high efficiency purchases here are the event pass for tokens and the Koi event for grails.

Using the established seasonal average of 1 Token ≈ 4.325 Grails, six months of seasonal passes gives:

• 170 × 6 = 1,020 tokens, meaning 1,020 tokens × 4.325 avg grails = 4,411.5 Grails over 6 events.

At Fu Fei’s seasonal cost of 450 Grails for 80 fragments, that produces: 4,411.5 ÷ 450 ≈ 9.8 purchases.

Now let us include consistent Koi purchases (850 Grails per event), the seasonal output increases significantly.

Over 6 events:

• Token Grails: ~4,411
• Koi Grails: 5,100
• Total: ~9,511 Grails

At 450 Grails per 80 fragments (Fu Fei):

• ~21 purchases
• ~1,680 fragments total

This effectively doubles seasonal output compared to pass-only modeling, Koi bundles come at additional cost of $25 per event which you want to get as these are the single best value purchase for players. For this reason, Koi is best understood as a high-efficiency accelerator, not part of the baseline.

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Now we add the battle passes.

Peak + Legendary together provide:

• 320 Chaos fragments per month
• Over 6 months: 320 × 6 = 1,920 fragments

So across the 6-month benchmark, the combined efficient sources produce:

• Seasonals: ~1680 fragments
• Battle Passes: 1,920 fragments

That gives a total of: ~3,600 fragments before touching Roulette or Rune Factory

That number is important, because it shows how much of a Chaos build can be covered by discounted systems before standard-cost progression even begins.

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Benchmark 1: 1640 fragments — usable Fu Fei

This is the first real breakpoint. At 1,640 fragments, Fu Fei has full stars and her artifact slot unlocked, which is where a Chaos immortal becomes properly usable in a structured lineup.

In this benchmark, you reach that threshold entirely through the discounted systems above. In fact, the combined seasonal and battle pass value already exceeds it comfortably allowing you to dive quite far into talents too (7).

For benchmarking, the total cost of these efficient systems over 6 months is:

• Seasonal pass: $50 × 6 = $300
• Koi: $25 × 6 = $150
• Peak + Legendary Battle Pass: $80 × 6 = $480

Total efficient-source spend:

• $930

That does not mean Fu Fei takes six full months to reach 1,640. In practice, you would reach that breakpoint much earlier. But as a benchmark, it shows that the usable tier is fully covered by the efficient systems in this model.

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Benchmark 2: 3830 fragments — complete build (talent level 8)

The next practical breakpoint is 3,830 fragments, which gives the standard talent-8 build that most players would consider complete for normal competitive use.

Under the Koi-optimized model, you already have: 3,600 fragments

So the remaining amount needed is: 3,830 − 3,600 = 230 fragments

Those remaining fragments are assumed to come from Roulette and/or Rune Factory at $0.45 per fragment (cheap bundles): 230 × $0.45 = $103

Now add that to the efficient-source benchmark: $930 + $103 = ~$1,033

So the total benchmark cost to reach a talent-8 Fu Fei becomes: ~$1,033

This is a very important result, because it shows that once Koi is consistently included, the standard “complete build” breakpoint is almost fully handled by discounted systems before you even lean on standard-cost fragment sources.

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Benchmark 3: 6390 fragments — full optimization

The final breakpoint is 6,390 fragments, which represents a fully optimized Fu Fei with maxed talent nodes.

Starting from the efficient-source total of 3,600 fragments, the remaining amount needed is: 6,390 − 3,600 = 2,790 fragments

Those fragments are assumed to come from Roulette and/or Rune Factory (read more) at $0.45 per fragment: 2,790 × $0.45 = $1,255

Now add the 6-month efficient-source spend: $930 + $1,255 = ~$2,185

So the benchmark total to fully optimize Fu Fei becomes: ~$2,185 over the course of a 6-month window.

That is a substantial reduction compared to a model that relies more heavily on standard-cost systems from the start. Comparatively, maxing a Fu Fei using only Chaos Roulette would cost you around 5,100$.

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Comments about progression and key take-aways

The main lesson here is that Koi changes the seasonal equation dramatically.

In the conservative model, seasonals acted mainly as a helpful discount layer. Using the Koi bundles especially, they become a major progression pillar—especially for an immortal like Fu Fei, whose 450 Grail price is already well below standard seasonal Chaos pricing.

That leads to three very practical conclusions:

• 1640 fragments becomes an easy, relatively cheap target doable in a much shorter time-window while maintaining efficiency
• 3830 fragments is nearly completed by efficient systems alone
• 6390 fragments still requires real spending, but starts from a much lower remaining total than going fast on the wheel or factory

It is worth noting, however, that this benchmark is specific to Fu Fei’s 450 Grail tier. Other Chaos immortals vary depending on their seasonal cost. For example:

• New Chaos immortals cost 845 Grails
• Anubis / Medusa / Nine Tails cost 750 Grails
• Fu Fei costs 450 Grails
• Loki / Athena / Wukong / Poseidon cost 250 Grails

So while the general structure holds true, the exact outcome will shift depending on the immortal you are building.

For Fu Fei, though, the conclusion is very clear:

If you consistently use seasonal passes, Koi, and monthly battle passes, a huge portion of her total fragment requirement is covered before you ever need to rely heavily on Roulette or Rune Factory.

Published: 01-04-2026

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