If you have 15 or less cards in your Deck, you may pay 0 to play this card instead.
Revitalize
Requirements:
"Tree"
Target:
1 Ninja on the Battlefield
Effect:
The target becomes a Stand-By Ninja and cannot be sent out to Battle during the next turn. Then, if you have 10 or less cards in your Deck, move this Jutsu back to your hand.