Dominaria United

Ertai's Scorn | Instant | | This spell costs {U} less to cast if an opponent cast two or more spells this turn. Counter target spell. | Alex Negrea

Joint Exploration | Instant | | Kicker {G} (You may pay an additional {G} as you cast this spell.) Scry 2, then draw a card. If this spell was kicked, you may put a land card from your hand onto the battlefield. | Zezhou Chen

Protect the Negotiators | Instant | | Kicker {W} (You may pay an additional {W} as you cast this spell.) If this spell was kicked, create a 1/1 white Soldier creature token. Counter target spell unless its controller pays {1} for each creature you control. | Dominik Mayer

Rona's Vortex | Instant | | Kicker {2}{B} (You may pay an additional {2}{B} as you cast this spell.) Return target creature or planeswalker you don't control to its owner's hand. If this spell was kicked, put that permanent on the bottom of its owner's library instead. | Dominik Mayer

Fires of Victory | Instant | | Kicker {2}{U} (You may pay an additional {2}{U} as you cast this spell.) If this spell was kicked, draw a card. Fires of Victory deals damage to target creature or planeswalker equal to the number of cards in your hand. | Sidharth Chaturvedi