This is the difference between playing mono-red or adding blue for card advantage and Expressive Iteration is probably the best card ever printed for the Izzet archetype
Which do you favor
The kicker is that it literally has kicker, letting you pay one and a red, one and a green, or both to have it enter the battlefield with two or four +1/+1 counters on it, raising the cost but also growing its size to allow you to steal bigger things
Theyll be a brewers paradise in Commander
Other than their rarity, art, and collectibility, these cards don't differ at all from their original counterparts in an actual play setting
Like morph, the disguise mechanic from Murders at Karlov Manor allows some creatures to be played disguised, or as a face-down 2/2 with ward 2