Drain Life [Alpha Edition] Human Knight if you control the artifact

if you control the artifact with the highest mana value or tied for the highest mana value

Benalia has a complex caste system that changes with the lunar year

Set: Mercadian Masques Type: Creature — Spirit Rarity: Rare Cost: {1}{B}{B} At the beginning of your upkeep

Set: Ixalan Prerelease Promos Type: Legendary Enchantment // Legendary Land Rarity: Rare Cost: {W} When Legion's Landing enters the battlefield

Drain Life [Alpha Edition] Human Knight if you control the artifactSet: Alpha Edition Type: Sorcery Rarity: Common Cost: {X}{1}{B} Spend only black mana on X. Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.