At the beginning of the end step, if no creatures are on the battlefield, sacrifice Pestilence. {B}: Pestilence deals 1 damage to each creature and each player.
Enchant creature Enchanted creature gets +2/+2 and has flying. Whenever a creature dealt damage by enchanted creature this turn dies, put a +1/+1 counter on that creature.
Vebulid enters with a +1/+1 counter on it. At the beginning of your upkeep, you may put a +1/+1 counter on Vebulid. When Vebulid attacks or blocks, destroy it at end of combat.
At the beginning of your upkeep, you may put a verse counter on Vile Requiem. {1}{B}, Sacrifice Vile Requiem: Destroy up to X target nonblack creatures, where X is the number of verse counters on Vile Requiem. They can't be regenerated.