As long as equipped creature is tapped, tapped creatures you control get +2/+0.

As long as equipped creature is untapped, untapped creatures you control get +0/+2.

{3}: You may tap or untap equipped creature.

Equip {3}

• Number: 234
• Rarity: R
• Type: Artifact
• Subtype: Equipment
• Mana cost: 4
• Color: Colorless
• Artist: Greg Hildebrandt