Powerstone

: Add . This mana can’t be spent to cast a nonartifact spell.

Warriors of Tiamat

Haste, double team (When this creature attacks, conjure a duplicate into your hand, then both of them perpetually lose double team.)

Tiamat’s Fanatics

Haste
Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that’s tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Reito Sentinel

Defender
When Reito Sentinel enters, target player mills three cards. (They put the top three cards of their library into their graveyard.)
: Put target card from a graveyard on the bottom of its owner’s library.

Walking Skyscraper

This spell costs less to cast for each modified creature you control. (Equipment, Auras you control, and counters are modifications.)
Trample
Walking Skyscraper has hexproof as long as it’s untapped. (It can’t be the target of spells or abilities your opponents control.)

Upriser Renegade

Upriser Renegade gets +2/+0 for each other modified creature you control. (Equipment, Auras you control, and counters are modifications.)

Hallowed Haunting

As long as you control seven or more enchantments, creatures you control have flying and vigilance.
Whenever you cast an enchantment spell, create a white Spirit Cleric creature token with “This creature’s power and toughness are each equal to the number of Spirits you control.”

Burn the Accursed

Burn the Accursed deals 5 damage to target creature and 2 damage to that creature’s controller. If that creature would die this turn, exile it instead.

Alchemist’s Retrieval

Cleave (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)
Return target nonland permanent [you control] to its owner’s hand.

Frenzied Geistblaster

Prowess
When Frenzied Geistblaster enters, if there are twenty or more instant and/or sorcery cards among cards in your graveyard, hand, and library, you may discard a card. If you do, seek an instant or sorcery card.

Hallowed Haunting

As long as you control seven or more enchantments, creatures you control have flying and vigilance.
Whenever you cast an enchantment spell, create a white Spirit Cleric creature token with “This creature’s power and toughness are each equal to the number of Spirits you control.”

Hallowed Haunting

As long as you control seven or more enchantments, creatures you control have flying and vigilance.
Whenever you cast an enchantment spell, create a white Spirit Cleric creature token with “This creature’s power and toughness are each equal to the number of Spirits you control.”

Alchemist’s Retrieval

Cleave (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)
Return target nonland permanent [you control] to its owner’s hand.

Hallowed Haunting

As long as you control seven or more enchantments, creatures you control have flying and vigilance.
Whenever you cast an enchantment spell, create a white Spirit Cleric creature token with “This creature’s power and toughness are each equal to the number of Spirits you control.”

Burn the Accursed

Burn the Accursed deals 5 damage to target creature and 2 damage to that creature’s controller. If that creature would die this turn, exile it instead.

Tend the Pests

As an additional cost to cast this spell, sacrifice a creature.
Create X 1/1 black and green Pest creature tokens with “When this creature dies, you gain 1 life,” where X is the sacrificed creature’s power.

Unwilling Ingredient

Menace (This creature can’t be blocked except by two or more creatures.)
, Exile Unwilling Ingredient from your graveyard: You draw a card and you lose 1 life.