Impact Tremors
{1}{R}
Enchantment
Oracle Text
Whenever a creature you control enters, this enchantment deals 1 damage to each opponent.
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.