Security Knight, Regius

: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 units that is being attacked, and it cannot be hit until end of that battle. Brave (Active when you have three or less cards in your hand):When this unit is placed on , if you have a vanguard with "Altmile" in its card name, 1. Then, if the number of cards in your hand is one or less, choose one of your units that is being attacked, and it cannot be hit until end of that battle.