Genku, Future Shaper
From Modern Horizons 3 set
Genku, Future Shaper
Legendary Creature — Moonfolk Wizard
2/5
Whenever another nontoken permanent you control leaves the battlefield, choose one that hasn't been chosen this turn. Create a creature token with those characteristics.
• 2/2 white Fox with vigilance.
• 1/2 blue Moonfolk with flying.
• 1/1 black Rat with lifelink.
: Put a +1/+1 counter on each creature you control.