Cadence, Necrodancer

Whenever Cadence, Necrodancer becomes
tapped, untap all other tapped creatures.
Whenever Cadence, Necrodancer becomes
untapped, tap all other untapped creatures.
{x}{r}, {t}: Cadence gets +X/+0 until end of turn.
{x}{u}, {ut}: Cadence gets +0/+X until end of turn.