Greven, Predator Captain [Commander 2019]

Greven, Predator Captain [Commander 2019]Set: Commander 2019 Type: Legendary Creature Phyrexian Human Warrior Rarity: Mythic Cost: {3}{B}{R} Menace Greven, Predator Captain gets +X +0, where X is the amount of life you've lost this turn. Whenever Greven attacks, you may sacrifice another creature. If you do, you draw cards equal to that creature's power and you lose life equal to that creature's toughness.

that player sacrifices two lands

Set: Dominaria Type: Legendary Creature — Specter Rarity: Uncommon Cost: {4}{B}{B} Flying

if it's the first combat phase of the turn

Set: Commander 2011 Type: Enchantment Rarity: Uncommon Cost: {2}{U} Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you

Set: Lorwyn Tokens Type: Token Creature — Avatar Rarity: Common This creature's power and toughness are each equal to your life total

"For justice and peace

Set: Apocalypse Type: Enchantment — Aura Rarity: Uncommon Cost: {W} Enchant creature you control

The Rack deals X damage to that player

Set: Conspiracy: Take the Crown Type: Creature — Ooze Rarity: Uncommon Cost: {2}{G} Whenever you cast a spell

their mana energies fused into new monstrosities

Set: Commander 2013 Type: Legendary Creature — Vampire Wizard Rarity: Mythic Cost: {1}{U}{B}{R} Flying

Set: Kaladesh Type: Creature — Human Pilot Rarity: Uncommon Cost: {3}{B} Whenever an artifact enters the battlefield under your control