Syr Caelor, Slime Knight

When Syr Caelor enters or attacks, choose one:
•Create Slime, a 2/1 blue ooze creature token.
•Create Heal Slime, a 0/2 white ooze creature token with “When this creature enters you gain 2 life.”
•Create Metal King Slime, a 3/4 ooze artifact creature token that is all colors with “Oozes you control get +1/+2.”
{2}{g/w}{b/g},{t}: Return target ooze creature card from your graveyard to the battlefield.
{g/u}{g/u}{g/u}{c}{c}: Make three 1/1 token copy of target ooze you control. O