Xeron Mana

When Xeron Mana enters the battlefield, put X power counters on Xeron Mana.
{t} Add {w} or {u} or {b} or {r} or {g}
{2}{t} Add X mana in any combination of colors, where X is the number of power counters on Xeron Mana.
{t}Remove a power counter from Xeron Mana, add {w}{u}{b}{r}{g}