Respawn Trial 3

When Respawn Trial no 3 enters the battlefield, sacrifice a creature and choose a player.
Creatures the chosen opponent casts enter with a -1/-1 counter.

{4}{p/r}{p/u}, choose a card you own from outside the game named "Respawn Trial 4", place it onto the battlefield, activate this ability if you control 2 other trials.

*shaking*