Destruction Tyrant, Gradogigant (RRR)

[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/RC):Engorge (When this unit attacks, you may retire one or more of your other rear-guards. If you do, it is engorged until end of turn)
[AUTO](VC):When this unit becomes engorged, this unit gets [Power]+5000 until end of turn for each unit retired during this turn due to the effect of this unit's engorge ability. If the number of units retired during this turn due to the effect of this unit's engorge ability is three or more, draw a card.