Knight of Obligation [Gatecrash]

Knight of Obligation [Gatecrash]Set: Gatecrash Type: Creature Human Knight Rarity: Uncommon Cost: {3}{W} Vigilance Extort (Whenever you cast a spell, you may pay {W B}. If you do, each opponent loses 1 life and you gain that much life.) He can calculate interest to six decimal places even in the midst of a deadly duel.

If the ground is smooth

Set: Morningtide Type: Creature — Elf Assassin Rarity: Rare Cost: {B}{B} {T}

you may gain 2 life

Sacrifice three Clues: Search your library for a card

The cave floods with light

Set: Magic 2011 Promos Type: Creature — Specter Rarity: Common Cost: {1}{B}{B} Flying

Set: Fifth Edition Type: Artifact Rarity: Uncommon Cost: {4} {3}

The one you see is just a diversion

it gets +2/+2 and has flying

" —Minaldra

except it's a white Zombie Snake Hydra with no mana cost

Gruul warriors never need to be stirred to battle