On'gonda, Corrupted Mystic

{1}{b},{t}: Create a 1/1 black Thrull creature
token with menace and "Sacrifice this
creature: Add {b}."
{1}{r},{t}: Create a 2/1 red Elemental creature
token with first strike and "Sacrifice this
creature: Add {r}."
{1}{g},{t}: Create a 0/3 green Plant creature
token with reach, defender and "Sacrifice this
creature: Add {g}."