Kellan, Daring Traveler // Journey On
Legendary Creature — Human Faerie Scout // Sorcery — Adventure
Whenever Kellan attacks, reveal the top card of your library. If it's a creature card with mana value 3 or less, put it into your hand. Otherwise, you may put it into your graveyard.
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Create X Map tokens, where X is one plus the number of opponents who control an artifact. (Then exile this card. You may cast the creature later from exile.)