Kokusho of the Eventide

Deathtouch, Flying, Vigilance
Whenever Kokusho of the Eventide deals combat damage to a player, place up to five -1/-1 counters on creatures that player controls.
Whenever you gain life during your main phase, transform Kokusho of the Eventide.
"Beware what flies between the evening stars." - Kithkin Proverb