Rougarian, Fists of Fury

Flurry of Blows — Whenever you cast your second spell each turn, put a +1/+1 counter on Rougarian, Fists of Fury.

Whenever Rougarian, Fists of Fury gets a
+1/+1 counter, return an instant, sorcery, or enchantment from your graveyard to your
hand.

Partner (You can have two commanders if both have partner.)