Omnath, Curious Locus

{g}{g}{t}: Create a 2/2 green elemental with
trample.
{r}{r}{t}: Create a 2/2 red elemental with haste.
{w}{w}{t}: Create a 2/2 white elemental with
vigilance.
{u}{u}{t}: Create a 2/2 blue elemental with flying.
{b}{b}{t}: Create a 2/2 black elemental with
death touch.
Sacrifice an elemental of each color: Transform Omnath, Curious Locus.