Plague Boiler

At the beginning of your upkeep, put a plague counter on Plague Boiler.
: Put a plague counter on Plague Boiler or remove a plague counter from it.
When Plague Boiler has three or more plague counters on it, sacrifice it. If you do, destroy all nonland permanents.

Smoldering Crater

Smoldering Crater enters the battlefield tapped.
: Add .
Cycling (, Discard this card: Draw a card.)

Lava Spike

Lava Spike deals 3 damage to target player or planeswalker.

Terashi’s Grasp

Destroy target artifact or enchantment. You gain life equal to its converted mana cost.

Fireball

This spell costs more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Circle of Protection: Red

: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Urza’s Factory

: Add .
, : Create a 2/2 colorless Assembly-Worker artifact creature token.

Cage of Hands

Enchant creature
Enchanted creature can’t attack or block.
: Return Cage of Hands to its owner’s hand.

Celestial Ancient

Flying
Whenever you cast an enchantment spell, put a +1/+1 counter on each creature you control.

Oni of Wild Places

Haste
At the beginning of your upkeep, return a red creature you control to its owner’s hand.

Slipstream Eel

Slipstream Eel can’t attack unless defending player controls an Island.
Cycling (, Discard this card: Draw a card.)

Reprocess

Sacrifice any number of artifacts, creatures, and/or lands. Draw a card for each permanent sacrificed this way.