Elegant Skinchanger

{u}{u}: Elegant Skinchanger becomes a 1/1 bird creature with flying until the end of turn.
{g}{g}: Elegant Skinchanger becomes a 2/1 deer creature with vigilance until end of turn.
{u}{u}{g}{g}: Elegant Skinchanger becomes a 3/3 bird deer creature with flying and vigilance until the end of turn.