send it to the GY, also, after that, if it left the field by this effect, Special Summon from your Extra Deck, 1 "Masked HERO" monster with the same Attribute, but a higher Level than, the Attribute/Level the monster had when it was on the field (its original Attribute/Level, if face-down)
And no, because of the card text, you cant discard the DCE for the entire cost
There are specialty cards that do things like freeze an opponent (preventing them from flipping more cards), making someone flip three cards in a row, and even giving you the opportunity to survive a card that would cause you to bust
30, ignores pretty much all the established rules around a new TCG Pocket expansion
Step 1: Prepare Your Cards in Penny Sleeves and Card Savers Handle your cards as little as possible from here on
That's looking good