Monoyoshi Sadamune

:Sentinel(You may only have up to four cards with ":Sentinel" in a deck.) :[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. Shinken Hissatsu (Active if you have three or more damage):[ 1 & 1] When this unit is placed on , you may pay the cost. If you do, reveal the top card of your deck, and if that card is a trigger unit, put it into your hand, and if it is not, put it on the bottom of your deck, and 1.