In EDH, dealing 2 damage to everybody each time you play an instant or sorcery is huge, and players wont be too keen on spending removal on your guy
One and two mana Wolves and Werewolves are important, because creatures you play the turns preceding Tovolar can immediately attack and draw cards when you play Tovolar on Turn 3
Realm Razer | Illustration by Hideaki Takamura Naya creatures in Magic: The Gathering are creatures with a red, green, and white color identity
Red combat tricks at common in OTJ Outlaws Fury is one of the two common payoffs for going wide and thus will likely be an important card in the format
Shapeshifters like Vesuvan Drifter from MOM: The Aftermath are also good options, and Dimir colors are perfect for accessing lots of the best rogues in the game, like Frogtosser Banneret for cost reduction
Along with the staple black removal suite, Dreadknight gives us a rock-solid foundation that happily soaks up opposing removal and small creatures while you build to bigger things