You lose X life and create X tapped Powerstone tokens. Then all creatures get -1/-1 until end of turn for each artifact you control. (The tokens are artifacts with ": Add . This mana can't be spent to cast a nonartifact spell.")

Menace

Whenever Terror Ballista attacks, you may sacrifice another creature. When you do, destroy target creature an opponent controls.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

: Testament of Faith becomes an X/X Wall creature with defender in addition to its other types until end of turn.

When you control no permanents other than The Cheese Stands Alone and have no cards in hand, you win the game.

, , Exile The Stasis Coffin: You gain protection from everything until your next turn.

Equipped creature has ", : This creature deals 1 damage to any target" and "Whenever a creature dies, untap this creature."

Whenever a Shaman creature enters, you may attach Thornbite Staff to it.

Equip

, , Discard a card: Create a 1/1 white Human Soldier creature token.

As long as Thunderstaff is untapped, if a creature would deal combat damage to you, prevent 1 of that damage.

, : Attacking creatures get +1/+0 until end of turn.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

At the beginning of each upkeep, if Tombstone Stairwell is on the battlefield, each player creates a 2/2 black Zombie creature token with haste named Tombspawn for each creature card in their graveyard.

At the beginning of each end step and when Tombstone Stairwell leaves the battlefield, destroy all tokens created with Tombstone Stairwell. They can't be regenerated.

Tramway Station enters tapped.

: Add or .

, , Sacrifice Tramway Station: Draw a card.

Targeting Relay — At the beginning of combat on your turn, choose an opponent.

Creatures attacking the last chosen player have menace.

Triton Shorestalker can't be blocked.

Whenever another creature you control enters, you gain life equal to that creature's toughness.

, : Populate. (Create a token that's a copy of a creature token you control.)

Exile target creature, then populate. (Create a token that's a copy of a creature token you control.)

If you would copy a spell one or more times, instead copy it that many times plus an additional time. You may choose new targets for the additional copy.

, : Copy target instant or sorcery spell you control. You may choose new targets for the copy.

Target creature you control gets +X/+X and gains hexproof and indestructible until end of turn. (A creature with hexproof and indestructible can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)

Partner with Cazur, Ruthless Stalker (When this creature enters, target player may put Cazur into their hand from their library, then shuffle.)

Ukkima, Stalking Shadow can't be blocked.

When Ukkima leaves the battlefield, it deals X damage to target player and you gain X life, where X is its power.

Enchant nonbasic land

When enchanted land becomes tapped, destroy it.

When Unstable Amulet enters, you get (two energy counters).

Whenever you cast a spell from anywhere other than your hand, Unstable Amulet deals 1 damage to each opponent.

, Pay : Exile the top card of your library. You may play it until you exile another card with Unstable Amulet.

: Add .

: Target land you control becomes the basic land type of your choice until end of turn.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Unstable Hulk is turned face up, it gets +6/+6 and gains trample until end of turn. You skip your next turn.

: Add .

, , Sacrifice Unstable Obelisk: Destroy target permanent.

Whenever another creature enters, Unstable Shapeshifter becomes a copy of that creature, except it has this ability.

When Up the Beanstalk enters and whenever you cast a spell with mana value 5 or greater, draw a card.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Uril, the Miststalker gets +2/+2 for each Aura attached to it.

Haste (This creature can attack and as soon as it comes under your control.)

At the beginning of the end step, return Viashino Sandstalker to its owner's hand. (Return it only if it's on the battlefield.)

At the beginning of your upkeep, if there are four or more creature cards in your graveyard, return a creature card at random from your graveyard to your hand.

Choose a Background (You can have a Background as a second commander.)

Each creature you control gains vigilance, trample, and melee until end of turn. (Whenever a creature with melee attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

At the beginning of the next main phase this turn, draw a card for each player who was dealt combat damage this turn.

: Add .

, Pay 1 life: Add one mana of any color. Spend this mana only to cast a Vampire spell.

, : Create a Blood token. This ability costs less to activate for each Vampire you control. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

Whenever Vraska's Conquistador attacks or blocks, if you control a Vraska planeswalker, target opponent loses 2 life and you gain 2 life.

Walking Ballista enters with X +1/+1 counters on it.

: Put a +1/+1 counter on Walking Ballista.

Remove a +1/+1 counter from Walking Ballista: It deals 1 damage to any target.

Cast this spell only during the declare attackers step and only if you've been attacked this step.

Creatures you control get +2/+2 until end of turn.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Whenever an opponent casts a blue or black spell during your turn, put a +1/+1 counter on Witchstalker.

Prevent the next 3 damage that would be dealt to any target this turn.

Draw a card.

Equipped creature gets +1/+0.

Whenever equipped creature blocks or becomes blocked by a Vampire, destroy that creature. It can't be regenerated.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

: Until end of turn, Xanthic Statue becomes an 8/8 Golem artifact creature with trample.

Flying

When Yosei, the Morning Star dies, target player skips their next untap step. Tap up to five target permanents that player controls.

Discard two cards: Create a 2/2 black Zombie creature token.