Twenty-two Summoners Greed monsters have a second, stronger form you unlock through evolution. This page is the reference list — every line, its material and its cost. For the strategy (which lines to prioritise and when), see the progression guide.
How evolution works
Evolving a monster consumes duplicate copies of it (or the matching evolution material) plus a stack of evolution stones. In return you get a new form with higher base stats and, on many monsters, a reworked skill — some change a lot (Baby Loand into Loand is a big attack jump), some barely change at all.
Evolution is permanent and the new form replaces the old one in your roster. Only evolve monsters you are actually keeping long-term: your main attacker per element, your boosters, your slow. Evolving an early-game unit you will bench in a week is wasted material.
The stone cost below is the evolution-stone half of the price. You also need the duplicate copies, which is the slower gate for most players.
Every evolution line
Sorted by stone cost — the cheapest lines are the ones to clear first once you have picked your keepers.
| Base → Evolved form | Cost |
|---|---|
| Slimey → Alpha Slimey | 1,000 Evolution Stone |
| Devon → Devonette | 1,000 Evolution Stone |
| Mocha → Omega Mocha | 5,000 Evolution Stone |
| Cappuccino → Iced Cappuccino | 5,000 Ice Stone |
| Flamey → Mr. Flamey | 5,000 Fire Stone |
| Sparky → Zipzappy | 10,000 Lightning Stone |
| Jack → Skellington | 10,000 Fire Stone |
| Teddy → Teddy (evolved) | 15,000 Evolution Stone |
| Pyro → Ex-Pyro | 15,000 Fire Stone |
| Chilly → Extra Chilly | 15,000 Ice Stone |
| Frostbite → Glacial Frostbite | 20,000 Ice Stone |
| Ash → Dust | 20,000 Fire Stone |
| Puffy → Puffsaurus | 25,000 Lightning Stone |
| Lightning → Megawatt | 25,000 Lightning Stone |
| Darkwing → Magma Darkwing | 25,000 Evolution Stone |
| Hellhound → Ifrit | 25,000 Fire Stone |
| Archimedes → Arch-Archimedes | 25,000 Ice Stone |
| Pony Sparks → Rapid Thunder | 50,000 Lightning Stone |
| Archangel Amael → Fallen Angel Amael | 50,000 Lightning Stone |
| Poseidon → Swoleseidon | 50,000 Ice Stone |
| Baby Loand → Loand | 50,000 Evolution Stone |
| Zeus → Bro Zeus | 100,000 Lightning Stone |
Where the materials come from
Evolution Stone is the generic currency — it comes from campaign progress, achievements, the shop and events. It is the least of your worries; the duplicate-copy requirement gates these lines harder than the stones do.
Fire Stone, Ice Stone and Lightning Stone are element-specific. The reliable source is that element's themed mode — Wrath of the Volcano Goddess for Fire, The Ice Queen's Tempest for Ice, Kami Pantheon's Retribution for Lightning — plus event shops. If you are saving for a big Lightning evolution (Zeus, Rapid Thunder, Fallen Angel Amael), run the Lightning mode regularly well before you need the stones.
There is no Cosmic evolution line, so Cosmic content is not an evolution-material concern.
Which lines are worth doing
Do first: whichever cheap Legendary you picked as your early main attacker (Ash → Dust, Frostbite → Glacial Frostbite, Puffy → Puffsaurus). The evolved form carries you through the mid campaign and the cost is low.
Do when you get there: Baby Loand → Loand (main-attacker upgrade), Poseidon → Swoleseidon and Zeus → Bro Zeus (both are real power jumps on already-strong Mythicals), Hellhound → Ifrit if you use Hellhound as your attack booster.
Skip unless you specifically use them: Slimey, Devon, Mocha, Teddy, Jack, Darkwing, Cappuccino and the other early-game evolutions — cheap, but the base monster is a bench unit and the evolved form still is. Devonette is the exception if you run the Anubis + Devon insta-kill pairing.
The 100,000-stone Zeus line is the single most expensive evolution in the game — only commit once Bro Zeus is genuinely your Lightning carry.