By sending one of their cards back, you force them to discard the only one left, which is guaranteed to be their strongest or most valuable card
Well, in OP08 we have the pleasure of encountering the Whitebeard Pirates, and we get a taste of the Big Mom Pirate as Kaido and Big Mom join forces
A natural weakness of discard decks is running out of steam yourself, but Waste Not helps to counteract the downsides of playing forced discard by providing various forms of card and mana advantage
The ultimate isnt anything to shy away at either, although expect to see that final ability appear more in Commander than Standard
Vivien's -2 ability allows me to cast an extra card, even if I have to pay the cost, and I can cast it anytime
You can also tell that theres a LOT going on toopart of Kandas incredible skill is that the more youll pay attention to his work, the more youll discover, understanding how uniquely detailed every composition is