Wanda has a game she calls Sokovian Roulette in which she rounds up all of the Avengers and makes them drink different coloured drinks. Sometimes she allows everyone to pick a drink at random, other times she assigns drinks to everyone specifically. All the Avengers are terrified of this game because the catch is that at least one - if not more or even all - of the drinks is always laced with one of her potions. Everyone is made to drink, but nobody knows who has a tainted drink or not - or even if they just drunk a potion themself. Sometimes the effects are immediate, other times they take a while and people notice the changes when they wake up the next morning
Wanda just called everyone into the living room to play Sokovian Roulette