[Stride] -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 (VC) from face down. [AUTO](VC):[Counter Blast (1)] When your rear-guard attacks a vanguard, if you have a heart card with "Honorary Professor" in its card name, you may pay the cost. If you do, choose up to one of your rear-guards, until end of turn, that unit gets [Power]+4000, at the end of that turn, draw a card, and retire that unit.