Parun's Palette

Whenever you cast a multicolored spell, put two
charge counters on Parun's Palette.
{t}: Add one mana of any color. Spend this mana
only to cast a multicolored spell or to activate a multicolored permanent's ability.
{t}, Remove X charge counter from Parun's
Palette: Add that much mana of any color. Spend
this mana only to cast a monocolored spell or to activate a monocolored permanent's ability.