Merfolk Skyscout
Rise of the Eldrazi — uncommon
Creature — Merfolk Scout
Merfolk Skyscout rulings:
2010-06-15: When Merfolk Skyscout blocks, its second ability triggers just once, even if it somehow blocked multiple attacking creatures.
2010-06-15: You may target any permanent with the ability, including Merfolk Skyscout itself or a permanent that’s already untapped.