This will hurt a deck like Lightsworn a lot, however, this effect only works if Ophion has Xyz material so you need to be cautious of that
We dont really have much against the deck outside of the handloop, as other than Ame-no-Habakiri (or cards that find it), they lack a consistent 1-card option
that monster you control gains 800 ATK until the end of this turn
(2) When you draw this card: You can reveal it
Frequently Asked Questions How much is Regigigas worth
You (the attacked player) can randomly add 1 of your cards banished by this card's effect to your hand, then you can discard it and negate that attack, but if you do not discard that added card, any battle damage you take this turn is doubled (even if this card leaves the field)