
NinjutsuNinjutsu, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.
(
, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever one or more creatures you control deal combat damage to a player, create a Treasure tokenTreasure tokenA Treasure is an artifact token with ", Sacrifice this token: Add one mana of any color." and manifestmanifestPut it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card. the top card of that player's library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)
Hover an underlined rule to see what it means.
Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.