Palace of Twilight

{t}: Add {w/b}{w/b} to your mana pool.
Whenever a Twili you control deals combat damage to a player, put six metamorph counters on up to six target permanents.
{4}{w/b}{w/b}{w/b}, {t}: Gain control of all permanents with a metamorph counter on them. Exile Palace of Twilight.
Transforms from Mirror of Twilight