This Deck tries to use the attack of Samurott (Master of Darknes) to deal Massive Damage, it does that by getting Energy from discard with Dark Patch and using the ability of Hydreigon from Paldea Evoloved to look at the Top 3 Card and attach any nummbery of Energy Cards to your Pokemon in any way. It uses Reversal to give you a Boost, when the Pricetrade is not in your Fovor, to get 3, instead of 1.
Possible Damage: 17 x 20 + 60 = 340 + 60 = 400 (with Weekness up to 800!)
There Is going to be a Different List, which uses the Hydreigon from Darknes Ablaze instead.