Meteokaiser, Tribrut

(Released when both players' vanguards are grade 3 or greater!)-Stride Step-[Choose one or more cards with the sum of their grades being 3 or greater from your hand, and discard them] this card on your from face down. : 1 When your rear-guard due to an effect from one of your cards, you may pay the cost. If you do, that unit gets +2000 until end of turn, choose one of your opponent's rear-guards with less than or equal to that unit's , and retire it.