Step 1: Play Astalor (Stage 1) at any point in the game
Step 2: Play Brann
Step 3: Play Anub’rekhan (+16 armor)
Step 4: Play Astalor (Stage 2) (net +5 armor; 21 total)
Step 5: Play Both Astalor (Stage 3) (-16 armor)
64 damage split across all enemies, up to 128 if you play Stage 1 Astalor on the Combo turn with leftover armor
Deck can be adapted to anything. It’s only a 3 card combo (+Guff/Innervate for 11 mana)