Cards like Scute Swarm or Rabble Rousing can put so many creatures on board that your opponents won't be able to defend against a giant Devilish Valet
Bartz and Boko Rarity: Rare TYPE: Legendary Creature SUBTYPE: Human Bird CMC: 5 Mana cost: USD: $3.66 EUR: 1.44 TIX: 0.02 EDHREC RANK: 7364 (4/3) Affinity for Birds (This spell costs less to cast for each Bird you control.) When Bartz and Boko enters, each other Bird you control deals damage equal to its power to target creature an opponent controls
There are also strong combo-style lines with Thornbite Staff, Ashnod's Altar, and Staff of Domination, and token loops around Krenko, Mob Boss that can spiral into game-ending damage
Do the same for flying, first strike, double strike, deathtouch, indestructible, lifelink, menace, reach, trample, and vigilance
I still dont think this is great, though
Enact Doom's world domination with an army of villainous Doombots at your command and strategies to weaken your opponents while strengthening yourself