Aether Flash

Whenever a creature enters, Aether Flash deals 2 damage to it.

Diaochan, Artful Beauty

{T}: Destroy target creature of your choice, then destroy target creature of an opponent's choice. Activate only during your turn, before attackers are declared.

Acidic Soil

Acidic Soil deals damage to each player equal to the number of lands they control.

Dong Zhou, the Tyrant

When Dong Zhou, the Tyrant enters, target creature an opponent controls deals damage equal to its power to that player.