Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Thrill of Possibility

As an additional cost to cast this spell, discard a card.
Draw two cards.

Darksteel Ingot

Indestructible (Effects that say "destroy" don't destroy this artifact.)
{T}: Add one mana of any color.

Abrade

Choose one —
• Abrade deals 3 damage to target creature.
• Destroy target artifact.

Gods Willing

Target creature you control gains protection from the color of your choice until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything of that color.)
Scry 1.

Jalum Tome

{2}, {T}: Draw a card, then discard a card.

Mana Tithe

Counter target spell unless its controller pays {1}.

Starnheim Courser

Flying
Artifact and enchantment spells you cast cost {1} less to cast.

Makeshift Munitions

{1}, Sacrifice an artifact or creature: Makeshift Munitions deals 1 damage to any target.

Mountain

Burning Inquiry

Each player draws three cards, then discards three cards at random.

Angelic Renewal

Whenever a creature is put into your graveyard from the battlefield, you may sacrifice Angelic Renewal. If you do, return that card to the battlefield.

End the Festivities

End the Festivities deals 1 damage to each opponent and each creature and planeswalker they control.

Plains

Myr Retriever

When Myr Retriever dies, return another target artifact card from your graveyard to your hand.