As an additional cost to cast artifact spells, you may pay {2}. When you do, each opponent sacrifices an untapped creature.

Deathtouch
If an opponent would lose life, they lose that much life plus 1 instead.
Spellcharge 3

Create a tapped 2/1 red Human Warrior creature token.
Flashback {2}{R}

Target creature gets +2/+0 until end of turn and must be blocked this turn if able.

Choose target creature you control. When that creature leaves the battlefield this turn, choose one —
• Create a token that's a copy of it.
• Search your library for a creature card with lesser mana value, put it onto the battlefield, then shuffle.

Choose a creature type. Put a +1/+1 counter on each creature you control of the chosen type.
If you control two or more creatures that share a name, draw a card.

When this creature enters, create a 4/4 colorless Vehicle artifact token named Hardsuit with crew 3.
Artifact tokens and enchantment tokens you control have exalted.

Target creature you control gets +2/+0 and gains first strike until end of turn. If it's attacking, create a 1/1 white Human creature token that's tapped and attacking.

As an additional cost to cast this spell, remove any number of counters from among creatures you control. This spell costs {1} less to cast for each counter removed this way.
Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.

Return target creature to its owner's hand.

When Ballot Registrar enters, make a pledge.
Activated abilities of nonland permanents you control cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.

Up to X target creatures you control each get +1/+1 until end of turn. Untap those creatures.

Tap up to two target creatures. Put a stun counter on each artifact tapped this way.

Ward {2}
{U}: Spells you cast this turn can be cast as though they had flash.

Spells you cast and abilities you activate that target equipped creature cost {2} less. This ability can't reduce the mana in that cost to less than one mana.
Equipped creature gets +1/+1 and has lifelink.
Equip {2}

Ruins you control can't be blocked by creatures with power 2 or less.
{1}, {T}: Put a +1/+1 counter on target Ruin.
Spellcharge 5

Flash
When Benthalos of Land and Sea enters, you may cast a copy of target white or blue enchantment you control.

Return any number of target creature cards with total mana value twice X or less from your graveyard to the battlefield. They're artifacts in addition to their other types.

When Blackout Grifter enters, each opponent loses 1 life and you gain 1 life.
Cybersoul {3}{B}

Exalted
{1}{W}, {T}: Tap target creature.

Bleeding Out deals 3 damage to any target. Excess damage dealt to a creature or planeswalker this way is dealt to its controller instead.

Flash
When Blightfang Zyxthax enters, discard a card. If you do, it gains deathtouch until end of turn.

Flash
When Blind Keelah enters and whenever you cast a spell during an opponent's turn, each opponent loses 1 life and you surveil 1. This ability triggers only once each turn.

Enchant creature
Enchanted creature can't attack or block.

Damned — When this creature enters, if you've sacrificed a permanent this turn, this creature deals 2 damage to each opponent.