More of a focus on synergy with Arjun's many draw triggers than just cheating out big bads
They mutate into the creature on top plus all abilities from under it.) Flying Whenever this creature mutates, create a red artifact token named Feather with ", Sacrifice this token: Return target Phoenix card from your graveyard to the battlefield tapped." Flying Whenever this creature mutates, create a red artifact token named Feather with ", Sacrifice this token: Return target Phoenix card from your graveyard to the battlefield tapped." Creature - Phoenix Gemrazer Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own
At the bottom of the pile are Zagras, Thief of Heartbeats and Olivia, Mobilized for War
Im not a huge fan of plodding combos, but you could always include Moderns erstwhile Ironworks combo in this deck too, if youd like
As a rule of thumb, the deck should include at least 25 actual planes