Knight of Evil Slash, Meyrig

[ACT](RC):If your vanguard is a grade 3 with "Thegrea" in its card name, and your opponent's vanguard is grade 3 or greater, [COST][bind this unit], search your deck for up to two grade 3 unit cards with "Thegrea" in their different card names, reveal them, choose up to one "Epee De Justice, Thegrea" from among the revealed cards and ride it as [Stand], put the remaining revealed card into soul, and shuffle the deck. Until end of turn, the unit you rode is also regarded as the same card name as the card rode upon.