The Essence of Machines

Whenever a nontoken colorless or artifact spell
enters the battlefield under your control, create a
1/1 colorless Soldier artifact creature token.
Whenever a colorless or artifact creature token
enters the battlefield under your control, add 1
mana of any color. Spend this mana only to cast
colorless or artifact spells.
As the orb appeared in front of the abandoned soldier,
it's power allowed the soldier to live once again.