To mitigate the strength of that combo, you have to return one DON
As for the card spoilers we actually saw, Vraska, Betrayal's Sting can proliferate, turn a creature into a harmless (but still handy) treasure token, and with her ultimate, give a player up to nine poison counters, leaving them close to death
You can only use this effect one per turn and only once that turn
Then identify how others are playing the game, so that I can take away the good parts of those but also recognise like the bad parts
While Goddess of Sweet Revenge is the only card in your hand or field, you can discard it from your hand to prevent an attack, while also destroying every single card your opponent controls
Card Name Mana Cost Type Instant Rarity Rare rules Text Target creature's owner shuffles it into their library, then faces a villainous choice - They lose 5 life, or they shuffle another creature they own into their library