Marwyn, the Nurturer
From Kaldheim Commander set
Marwyn, the Nurturer
Legendary Creature — Elf Druid
1/1
Whenever another Elf you control enters, put a +1/+1 counter on Marwyn.
: Add an amount of equal to Marwyn's power.
Rulings
- Marwyn's activated ability is a mana ability. It doesn't use the stack and can't be responded to.