Tri-ruler Cat

:Sentinel :[Choose a card from your hand, and discard it] When this unit is placed on from hand, you may pay the cost. If you do, choose one of your vanguards that is being attacked, and that unit cannot be hit until end of that battle. : 1 When this unit is put into the drop zone from during your end phase, you may pay the cost. If you do, search your deck for up to one card named "Tri-ruler Cat", reveal it to your opponent, put it into your hand, and shuffle your deck.