Goblin Guide
From Zendikar set
Goblin Guide
Creature — Goblin Scout
2/2
Haste
Whenever this creature attacks, defending player reveals the top card of their library. If it's a land card, that player puts it into their hand.
Rulings
- If Goblin Guide is attacking a planeswalker, that planeswalker's controller is the defending player.
- If the defending player reveals a nonland card, it remains on top of their library.