whenever a creature you control with deathtouch deals damage to a player or planeswalker, put a +1/+1 counter on that creature.
−2: create a 1/1 black assassin creature token with deathtouch and "whenever this creature deals damage to a planeswalker, destroy that planeswalker."
"To comprehend the full answer requires years of temporal study. In short, they were now never born in the first place." —Teferi