
Necropolis Regent | Creature | Vampire | Flying
Whenever a creature you control deals combat damage to a player, put that many +1/+1 counters on it. | Winona Nelson

Rakdos, Lord of Riots | Legendary Creature | Demon | You can't cast this spell unless an opponent lost life this turn.
Flying, trample
Creature spells you cast cost {1} less to cast for each 1 life your opponents have lost this turn. | Vincent Proce

Rakdos's Return | Sorcery | | Rakdos's Return deals X damage to target opponent or planeswalker. That player or that planeswalker's controller discards X cards. | Daarken

Jarad, Golgari Lich Lord | Legendary Creature | Zombie Elf | Jarad, Golgari Lich Lord gets +1/+1 for each creature card in your graveyard.
{1}{B}{G}, Sacrifice another creature: Each opponent loses life equal to the sacrificed creature's power.
Sacrifice a Swamp and a Forest: Return Jarad from your graveyard to your hand. | Eric Deschamps

Vraska the Unseen | Legendary Planeswalker | Vraska | +1: Until your next turn, whenever a creature deals combat damage to Vraska the Unseen, destroy that creature.
−3: Destroy target nonland permanent.
−7: Create three 1/1 black Assassin creature tokens with "Whenever this creature deals combat damage to a player, that player loses the game." | Aleksi Briclot