Nezumi Informant

When this creature enters, each opponent discards a card.

Dark Ritual

Enchant creature
Enchanted creature gets -2/-2.

Target player discards two cards at random.

Target player discards a card.
Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Each opponent's maximum hand size is reduced by one.

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Target opponent reveals their hand. You choose a creature or planeswalker card from it. That player discards that card.