Ajani's Memoir

Whenever a Planeswalker you control leaves the battlefield this turn, you gain life equal to its converted mana cost; scry X, where X is the number of loyalty counters on it at the beginning of this turn; and Ajani's Memoir deals
5 damage to target opponent or creature you
don't control.
"Elspeth may leave us, but her lesson shall not be forgotten." - Ajani