Dark Dragon, Chainrancor 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. :[Turn a card from your G zone face up], and this unit gets all of the original abilities of one of your heart cards. :If you have three or more grade 1 or less units, when your opponent would call from his or her hand to , he or she must call three or more at the same time.