Bastion
A wall that does not give ground. Every defensive relic adds another layer of stone between your team and the enemy.
Tiers
Tier I
1 defense relic
Team Def ×1.1
Tier II
2 defense relics
Team Def ×1.2 · Team Sp. Def ×1.1
Tier III
3 defense relics
Team Def ×1.3 · Team Sp. Def ×1.2
See how the synergies fit together across the whole roster in the zones you will cross.