Stride (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] Stride this card on your from face down.
: When this unit attacks a vanguard, you may pay the cost. If you do, choose any number of locked cards, unlock them, and this unit gets +3000 for each unit unlocked until end of that battle. If the number of units unlocked is three or more, this unit gets [Critical]+1 until end of that battle.