All 75 specializations in Guildrun
Every hero in Guildrun has three specializations and takes exactly one of them per run. That single choice is the biggest decision you make about a hero: it can hand them a new active ability, a new passive, a second class, or a set of tags that other relics and items look for.
This page lists all 75 specializations grouped by the hero that offers them, with the ability each one grants and the class it adds where it adds one.
Stall
Backup
Debuff
Shield
Shard
Crit
Omnivamp
Stealth
Rush
Burn
Frost
Stun
Poison