It That Betrays [Duel Decks: Zendikar vs. Eldrazi]Set: Duel Decks: Zendikar vs. Eldrazi Type: Creature Eldrazi Rarity: Rare Cost: {12} Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents.) Whenever an opponent sacrifices a nontoken permanent, put that card onto the battlefield under your control. Your pleas for death shall go unheard.

create that many 1/1 colorless Tetravite artifact creature tokens

Set: Portal Three Kingdoms Type: Creature — Human Soldier Archer Rarity: Uncommon Cost: {R} Sacrifice Fire Bowman: It deals 1 damage to any target

sleeper agent

Koth Type: Enchantment — Aura Rarity: Common Cost: {U} Enchant creature

power still radiated from the Mirari sword that slew her

you may change "swampwalk" to "plainswalk

Set: League Tokens 2015 Type: Token Creature — Monk Rarity: Common Prowess

Set: San Diego Comic-Con 2016 Type: Legendary Planeswalker — Jace Rarity: Mythic Cost: {3}{U}{U} +1: Scry 1

The correct answer to a barbarian's riddle is to choke on your cleverness and die

Set: Mirage Type: Enchantment Rarity: Rare Cost: {1}{U}{B} {1}

Set: Legends Type: Creature — Insect Rarity: Rare Cost: {1}{G}{G} Flying

Set: Urza's Legacy Type: Artifact Rarity: Rare Cost: {2} Each spell costs {3} more to cast except during its controller's turn