Haste Whenever Skullbriar, the Walking Grave deals combat damage to a player, put a +1/+1 counter on it. Counters remain on Skullbriar as it moves to any zone other than a player's hand or library.
Flying If Szadek, Lord of Secrets would deal combat damage to a player, instead put that many +1/+1 counters on Szadek and that player mills that many cards.
Flying Whenever Teneb, the Harvester deals combat damage to a player, you may pay {2}{B}. If you do, put target creature card from a graveyard onto the battlefield under your control.
"I've seen death before. My mother succumbing to illness, my comrades bleeding on the battlefield . . . But I'd never seen anything as dreadful as that." —Taani, berserker of Etlan
Return target card from your graveyard to your hand. If you return a nonland card to your hand this way, Vengeful Rebirth deals damage equal to that card's mana value to any target. Exile Vengeful Rebirth.
Flying, lifelink Sacrifice a creature: Put X +1/+1 counters on Vish Kal, Blood Arbiter, where X is the sacrificed creature's power. Remove all +1/+1 counters from Vish Kal: Target creature gets -1/-1 until end of turn for each +1/+1 counter removed this way.
Islandwalk, swampwalk Whenever Wrexial, the Risen Deep deals combat damage to a player, you may cast target instant or sorcery card from that player's graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead.
At the beginning of your upkeep, you gain X life and draw X cards, where X is the number of permanents you own that your opponents control. {U}{R}{W}: Target opponent gains control of target permanent you control.