Emeralda, The Wished For Child

Pilot
The first activated ability that is not a mana ability you activate each turn has split second.

{2}, {t}: Deal 2 damage to target creature or planeswalker. If only blue mana was used to activate this ability tap target creature. If only white mana was used to activate this ability the target cannot activate abilities until the beginning of your next turn. If only black mana was used to activate this ability put a -1/-1 counter on the target.
If you control Zeboim, you may transform Emeralda Kas