Contor's Cube

Galgoroph spells cost {w}{u}{b}{r}{g} less to
cast as long as Contor's Cube is untapped.
Galgoroph spells cost {w}{u}{b}{r}{g} more to
cast as long as Contor's Cube is tapped.
{ut}: You lose 1 life.
{t}: You lose 1 life. Any player may activate
this ability.