Artifact Creature - Myr (2/2)
If ~this~ would deal damage to a creature, it deals that much damage plus 3 instead
~this~ doesn't untap during your untap step.
At the beginning of your upkeep, you may pay 4. If you do, untap ~this~. as long as you control a permanent

Converted mana cost: 6

AlexChurchill/TypeFourArtifactGenerator