Forsaken Monument

Colorless creatures you control get +2/+2.
Whenever you tap a permanent for {C}, add an additional {C}.
Whenever you cast a colorless spell, you gain 2 life.

Myr Superion

Spend only mana produced by creatures to cast this spell.

Myr Custodian

When Myr Custodian enters, scry 2. Then each opponent may scry 1. (To scry X, a player looks at the top X cards of their library, then puts any number of them on the bottom and the rest on top in any order.)

Parcel Myr

Perilous Myr

When Perilous Myr dies, it deals 2 damage to any target.

Enlightened Tutor

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

Tempered Steel

Artifact creatures you control get +2/+2.

Myr Scrapling

Sacrifice Myr Scrapling: Put a +1/+1 counter on target creature.