Kozilek, the Great Distortion [Oath of the Gatewatch Prerelease Promos] Dragons of Tarkir or combat phase

or combat phase

Set: Portal Three Kingdoms Type: Legendary Creature — Human Soldier Warrior Rarity: Rare Cost: {2}{B}{B} Horsemanship (This creature can't be blocked except by creatures with horsemanship

that player sacrifices a permanent unless they pay {1}

Set: Eternal Masters Type: Sorcery Rarity: Rare Cost: {X}{G} Search your library for a green creature card with mana value X or less

Kozilek, the Great Distortion [Oath of the Gatewatch Prerelease Promos] Dragons of Tarkir or combat phaseSet: Oath of the Gatewatch Prerelease Promos Type: Legendary Creature Eldrazi Rarity: Mythic Cost: {8}{C}{C} When you cast this spell, if you have fewer than seven cards in hand, draw cards equal to the difference. Menace Discard a card with mana value X: Counter target spell with mana value X. A void as cryptic as reality itself.