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Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
Whenever Merfolk Spy deals combat damage to a player, that player reveals a card at random from their hand.
After the second ability resolves, the revealed card stops being revealed in its owner’s hand.
Islandwalk cares about lands with the land type Island, not necessarily lands named Island.
The next time Merfolk Spy deals combat damage to the same player, the card that’s revealed at random may be the same card or may be a different card.
The second ability triggers just once each time Merfolk Spy deals combat damage to a player, regardless of how much damage it deals.
