As Katerina of Myra's Marvels enters, choose a letter. Whenever you cast a spell whose name begins with the chosen letter, create a white 2/2 Cat creature token with flying. Partner (You can have two commanders if they both have partner.)

Haste Robots you control get +1/+1. {R}{W}, {T}, Tell a joke you haven't told this game to someone outside the game: Create a 1/1 white Clown Robot artifact creature token. If that person laughed, the token gains haste until end of turn.

Knightlifelink (Damage dealt by Knights you control also causes you to gain that much life.) {W}: Syr Cadian gains vigilance until end of turn. Activate only from sunrise to sunset. {B}: Syr Cadian gains flying until end of turn. Activate only from sunset to sunrise.