Tier-4 Advancement
Book of the Vishanti, Life Seed, Carbonadium, Soul of the Faltine, and Gold are needed to advance a hero that meets all the requirements to Tier-4.
Tier-4 Advancement materials can be earned from Giant Boss Raid: Dormammu and World Boss: Legend.
The Instinct stats and basic stats of a hero will be increased when a hero is advanced to Tier-4.
The Striker Skill will be unlocked when a hero is advanced to Tier-4.
