Quarry Colossus
{5}{W}{W}
Creature — Giant
Oracle Text
When this creature enters, put target creature into its owner's library just beneath the top X cards of that library, where X is the number of Plains you control.
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.