Voltaic Servant

At the beginning of your end step, untap target artifact.

The Immortal Sun

Players can't activate planeswalkers' loyalty abilities.
At the beginning of your draw step, draw an additional card.
Spells you cast cost {1} less to cast.
Creatures you control get +1/+1.

Esika's Chariot

When Esika's Chariot enters, create two 2/2 green Cat creature tokens.
Whenever Esika's Chariot attacks, create a token that's a copy of target token you control.
Crew 4

Slag Fiend

Slag Fiend's power and toughness are each equal to the number of artifact cards in all graveyards.

Svella, Ice Shaper

{3}, {T}: Create a colorless snow artifact token named Icy Manalith with "{T}: Add one mana of any color."
{6}{R}{G}, {T}: Look at the top four cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.

Chalice of the Void

This artifact enters with X charge counters on it.
Whenever a player casts a spell with mana value equal to the number of charge counters on this artifact, counter that spell.

Volt-Charged Berserker

Voltaic Visionary

{T}: This creature deals 2 damage to you. Exile the top card of your library. You may play that card this turn. Activate only as a sorcery.
When you play a card exiled with this creature, transform this creature.

Voltaic Visionary // Volt-Charged Berserker

Tower of Fortunes

Diviner's Lockbox

{1}, {T}: Choose a card name, then reveal the top card of your library. If that card has the chosen name, sacrifice this artifact and draw three cards. Activate only as a sorcery.

Tome of the Guildpact

Whenever you cast a multicolored spell, draw a card.
{T}: Add one mana of any color.

Arcum's Astrolabe

({S} can be paid with one mana from a snow source.)
When this artifact enters, draw a card.
{1}, {T}: Add one mana of any color.

Ichor Wellspring

When this artifact enters or is put into a graveyard from the battlefield, draw a card.