Akroma's Will Ancient Copper Dragon Atraxa, Grand Unifier Gix, Yawgmoth Praetor Kinnan, Bonder Prodigy Najeela, the Blade-Blossom Nyxbloom Ancient Purphoros, God of the Forge Ragavan, Nimble Pilferer Ranger-Captain of Eos Rhystic Study Thrasios, Triton Hero Urza, Lord High Artificer Vial Smasher the Fierce Yawgmoth, Thran Physician
So your big Fireball-style cards turn into big draw spells as well
they simultaneously build a board to benefit from Felothars counters and provide sacrifice fodder for it the following turn
Banner of Kinship is like Door of Destinies, but you cast it after you curve out, and not before
Realmwalker As a shapeshifter and changeling Realmwalker gets the nod over all the other typal versions because it goes in any deck that can run green creatures, not just one
The best of the bunch even have energy-manipulating abilities for increased viability