Reach player level 40 to unlock 6 new features in Castle Defense.
Awaken L5 relics to Mythic for +50% bonus and a unique Resonance ability.
Where: Heroes ▸ Relics
This giant spits an 80px acid pool every 17s that corrodes towers inside it — reducing their damage by 40% for 5s. Antitoxin Cannon units instantly neutralize the acid. +152G/kill.
Where: Fight ▸ Venom Colossus
This boss regenerates a 300HP obsidian shell every 25s — all damage is blocked until the shell is destroyed. Thermite Cannon units deal 300% damage to the shell, bypassing its hardness. +158G/kill.
Where: Fight ▸ Obsidian Colossus
This ice colossus emits a freeze wave every 22s locking every tower within 200px for 5s. Fire Drake units melt the ice instantly. +160G/kill.
Where: Fight ▸ Glacial Sovereign
Enemy Lava Trolls · Unit Magma Spear