Eternity Chaser

:When this unit is rode upon, [discard a card from your hand], choose up to one grade 3 normal unit from your hand, and reveal it. If you revealed a card, search your deck for up to one grade 3 card with a different card name from that revealed card, reveal it and put it into your hand, and shuffle your deck. Back Row :When your opponent's opponent's rear-guard attacks, if that unit's is 25000 or less, [ 1 & retire this unit], choose one of your units, and it does not get hit until end of that battle. (Includes from boost and your opponent's card effects)