Goblin Researcher
{3}{R}
Creature — Goblin Wizard
Oracle Text
When this creature enters, exile the top card of your library. During any turn you attacked with this creature, you may play that card.
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.