Dark Deal

Each player discards all the cards in their hand, then draws that many cards minus one.

Elves of Deep Shadow

{T}: Add {B}. This creature deals 1 damage to you.

Llanowar Elves

Cunning Lethemancer

At the beginning of your upkeep, each player discards a card.

Mind Slash

{B}, Sacrifice a creature: Target opponent reveals their hand. You choose a card from it. That player discards that card. Activate only as a sorcery.

Megrim

Whenever an opponent discards a card, this enchantment deals 2 damage to that player.

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Waste Not

Whenever an opponent discards a creature card, create a 2/2 black Zombie creature token.
Whenever an opponent discards a land card, add {B}{B}.
Whenever an opponent discards a noncreature, nonland card, draw a card.

Sol Ring

Elvish Mystic

Nath of the Gilt-Leaf

At the beginning of your upkeep, you may have target opponent discard a card at random.
Whenever an opponent discards a card, you may create a 1/1 green Elf Warrior creature token.

Liliana's Caress

Whenever an opponent discards a card, that player loses 2 life.

Skullclamp

Equipped creature gets +1/-1.
Whenever equipped creature dies, draw two cards.
Equip {1}

Sadistic Hypnotist

Sacrifice a creature: Target player discards two cards. Activate only as a sorcery.

Geth's Grimoire

Whenever an opponent discards a card, you may draw a card.

Elderfang Disciple

When this creature enters, each opponent discards a card.

Syphon Mind

Each other player discards a card. You draw a card for each card discarded this way.

Elvish Archdruid

Other Elf creatures you control get +1/+1.
{T}: Add {G} for each Elf you control.

Dark Ritual

Fyndhorn Elves

Delirium Skeins

Fell Specter

Flying
When this creature enters, target opponent discards a card.
Whenever an opponent discards a card, that player loses 2 life.