Interdimensional Dragon, Beyond Order Dragon

-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 & 1 & Bind eight cards from the top of your deck face up] After the original battle phase of this turn, you will perform an additional main phase and battle phase. Until end of turn, this unit gets ":At the beginning of your main phase, this unit, and it gets drive -1 until end of turn.".(Perform the end phase after the additional phases)