Dominaria United

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

Shore Up | Instant | | Target creature you control gets +1/+1 and gains hexproof until end of turn. Untap it. (It can't be the target of spells or abilities your opponents control.) | Mark Behm

Timely Interference | Instant | | Kicker {1}{R} (You may pay an additional {1}{R} as you cast this spell.) Target creature gets -1/-0 until end of turn. If this spell was kicked, that creature blocks this turn if able. Draw a card. | Joshua Raphael

Cut Down | Instant | | Destroy target creature with total power and toughness 5 or less. | Dominik Mayer

Flowstone Infusion | Instant | | Target creature gets +2/-2 until end of turn. | Allen Williams

Gaea's Might | Instant | | Domain — Target creature gets +1/+1 until end of turn for each basic land type among lands you control. | Alex Negrea

Strength of the Coalition | Instant | | Kicker {2}{W} (You may pay an additional {2}{W} as you cast this spell.) Target creature you control gets +2/+2 until end of turn. If this spell was kicked, put a +1/+1 counter on each creature you control. | Justine Cruz

Tail Swipe | Instant | | Choose target creature you control and target creature you don't control. If you cast this spell during your main phase, the creature you control gets +1/+1 until end of turn. Then those creatures fight each other. (Each deals damage equal to its power to the other.) | Ângelo Bortolini