Research the Deep [Morningtide] Arena League 2001 that card becomes that Pendulum

that card becomes that Pendulum Scale

Set: Commander 2017 Type: Instant Rarity: Rare Cost: {3}{U}{B} Choose two —

The Raging Tempest booster set contains 100 cards:

Set: Darksteel Type: Instant Rarity: Rare Cost: {2}{B}{B} Choose one —

destroy 1 monster in Attack Position your opponent controls

Research the Deep [Morningtide] Arena League 2001 that card becomes that PendulumSet: Morningtide Type: Sorcery Rarity: Uncommon Cost: {1}{U} Draw a card. Clash with an opponent. If you win, return Research the Deep to its owner's hand. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)