Aebin Crystallization

Aebin Aura
As long as you control a permanent with Sessic Aura, Aebin Crystallization has protection from instant spells.
Triumvirate Aura - As long as you control a spell with Aebin Aura, a spell with Firiate Aura, and a spell with Sessic Aura; creatures with power 3 or less your opponent controls can't attack.