Jörmungandr

Jörmungandr Power and toughness equal the amount of Mana you have
{w/b}{u/r}{r/g}{b/g}{g/u}{t} Jörmungandr gets 10 1/1 counters
{u}{u}{u}{g/u}{u/r}{u/b}{8} Jörmungandr Gaines Island Walk until the end of turn