Lock

: Put a charge counter on this artifact. Remove a charge counter from this artifact: Add one mana of any color.

Cumulative upkeep—Add . (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Players skip their untap steps. At the beginning of your upkeep, sacrifice this enchantment unless you pay .

Artifacts, creatures, and lands your opponents control enter tapped.