Dark Deal

Each player reveals their hand, chooses one card of each color from it, then discards all other nonland cards.

Target player reveals their hand. That player discards all nonland cards with the same name as another card in their hand.

Each player discards three cards.

Choose a color. Target player reveals their hand and discards all cards of that color.

Discard any number of cards. Target player reveals their hand, then you choose a nonland card from it for each card discarded this way. That player discards those cards.

Each player sacrifices all permanents that are rare or mythic rare, then each player reveals their hand and discards all cards that are rare or mythic rare.