Purple Mana Rock Inside a Rock

Purple Mana Rock Inside a Rock comes
into play with {x} mana counters on it.
{t}: Add {w}{u}{b}{r}{g} to your mana pool.
{t}: Remove a mana counter from
Purple Mana Rock Inside a Rock, and add {w}{w}{u}{u}{b}{b}{r}{r}{g}{g}
"So much mana so little time."