On its transformed side, Tovolar, the Midnight Scourge helps you draw a lot of cards, making it more likely youll be able to go wide with creatures and have good responses for your opponents threats
Then theres Iroas, God of Victory, a Boros god that gives all your creatures menace and protects your attacking creatures from damage
Those cards are equipment or auras
Decks ramping with artifacts might want Urza, Lord High Artificer, while a deck full of mana dorks may reach for Craterhoof Behemoth
When you look to supplementary products for EDH, the cards get even stronger
Artifact - Book Recursion (CTRL to add secondary) Removal Berserker's Frenzy Cast this spell only before combat or during combat before blockers are declared