Crick, Warden of the Isles

Landfall —Whenever a land enters the battlefield under your control, put a +1/+0 arrow counter on Crick, Warden of the Isles.
{1}{r/g}{r/g}, {t}: Choose one —
• Deal damage to any target equal to the number of arrow counters on this card.
• Remove an arrow counter from Crick, Warden of the Isles. Destroy target creature.