Chaos Emerald - Spirit Cyan

When this artifact enters battlefield, target permanent phases out until its controllers next upkeep

Equipped creature has "{t}: this creature phases out until the next end step" and "If you control 3 other emeralds, you may pay 2 life, if you do, untap equipped creature"

Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery.)