Smelt

Serum Visions

Mana Leak

Counter target spell unless its controller pays {3}.

Izzet Signet

Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice this artifact: Draw a card.

Anger of the Gods

Anger of the Gods deals 3 damage to each creature. If a creature dealt damage this way would die this turn, exile it instead.

Tormod's Crypt

{T}, Sacrifice this artifact: Exile target player's graveyard.

Annex

Enchant land (Target a land as you cast this. This card enters attached to that land.)
You control enchanted land.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Repeal

Return target nonland permanent with mana value X to its owner's hand.
Draw a card.

Roast

Roast deals 5 damage to target creature without flying.

Dragon's Claw

Whenever a player casts a red spell, you may gain 1 life.

Negate

Mountain

Dispel

Frost Titan

Whenever this creature becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {2}.
Whenever this creature enters or attacks, tap target permanent. It doesn't untap during its controller's next untap step.

Mikokoro, Center of the Sea

{T}: Add {C}.
{2}, {T}: Each player draws a card.

Island

Wildfire

Each player sacrifices four lands of their choice. Wildfire deals 4 damage to each creature.

Sulfur Falls

This land enters tapped unless you control an Island or a Mountain.
{T}: Add {U} or {R}.

Dream Leash

Enchant permanent
You can't choose an untapped permanent as this spell's target as you cast it.
You control enchanted permanent.