Spine of ooo dam.

Creatures don't untap during their controllers' untap steps. Whenever a creature enters, untap all creatures.

, , Return an artifact you control to its owner's hand: You may put an artifact card from your hand onto the battlefield.

When this artifact enters, destroy target permanent. When this artifact is put into a graveyard from the battlefield, return it to its owner's hand.

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