Ancient Tomb

{T}: Add {C}{C}. This land deals 2 damage to you.

Firedrinker Satyr

Whenever this creature is dealt damage, it deals that much damage to you.
{1}{R}: This creature gets +1/+0 until end of turn and deals 1 damage to you.

Aftershock

Destroy target artifact, creature, or land. Aftershock deals 3 damage to you.

Auntie Blyte, Bad Influence

Flying
Whenever a source you control deals damage to you, put that many +1/+1 counters on Auntie Blyte.
{1}{R}, {T}, Remove X +1/+1 counters from Auntie Blyte: It deals X damage to any target.

Tarnished Citadel

{T}: Add {C}.
{T}: Add one mana of any color. This land deals 3 damage to you.

Heartless Hidetsugu

{T}: Heartless Hidetsugu deals damage to each player equal to half that player's life total, rounded down.

Descent into Avernus

At the beginning of your upkeep, put two descent counters on this enchantment. Then each player creates X Treasure tokens and this enchantment deals X damage to each player, where X is the number of descent counters on this enchantment.

Forge Devil

When this creature enters, it deals 1 damage to target creature and 1 damage to you.

Grand Coliseum

This land enters tapped.
{T}: Add {C}.
{T}: Add one mana of any color. This land deals 1 damage to you.

Jinxed Idol

At the beginning of your upkeep, this artifact deals 2 damage to you.
Sacrifice a creature: Target opponent gains control of this artifact.

Flamebreak

Flamebreak deals 3 damage to each creature without flying and each player. Creatures dealt damage this way can't be regenerated this turn.

Barbarian Ring

{T}: Add {R}. This land deals 1 damage to you.
Threshold — {R}, {T}, Sacrifice this land: It deals 2 damage to any target. Activate only if there are seven or more cards in your graveyard.

Char

Char deals 4 damage to any target and 2 damage to you.

City of Brass

Whenever this land becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Orcish Artillery

{T}: This creature deals 2 damage to any target and 3 damage to you.

Cave-In

You may exile a red card from your hand rather than pay this spell's mana cost.
Cave-In deals 2 damage to each creature and each player.

Goblin Artillery

Arcbond

Choose target creature. Whenever that creature is dealt damage this turn, it deals that much damage to each other creature and each player.

Coalhauler Swine

Whenever this creature is dealt damage, it deals that much damage to each player.

Fireslinger

{T}: This creature deals 1 damage to any target and 1 damage to you.

Orcish Cannonade

Orcish Cannonade deals 2 damage to any target and 3 damage to you.
Draw a card.

Ravenous Giant

At the beginning of your upkeep, this creature deals 1 damage to you.

Blood Hound

Whenever you're dealt damage, you may put that many +1/+1 counters on this creature.
At the beginning of your end step, remove all +1/+1 counters from this creature.

Jinxed Ring

Whenever a nontoken permanent is put into your graveyard from the battlefield, this artifact deals 1 damage to you.
Sacrifice a creature: Target opponent gains control of this artifact. (This effect lasts indefinitely.)

Kookus

Trample
At the beginning of your upkeep, if you don't control a creature named Keeper of Kookus, this creature deals 3 damage to you and attacks this turn if able.
{R}: This creature gets +1/+0 until end of turn.