Argothian Wurm
{3}{G}
Creature — Wurm
Oracle Text
Trample
When this creature enters, any player may sacrifice a land of their choice. If a player does, put this creature on top of its owner's library.
Watch Out
ETB trigger, not a cast triggerRules Note
This card's ability triggers when it enters the battlefield, not when it's cast. Effects that double ETB triggers (like Panharmonicon) work here. Countering the spell prevents the creature from entering, so the ETB won't fire.