Except for the listed exceptions, Malleable Impostor copies exactly what was printed on the original permanent and nothing more (unless that permanent is itself copying something or is a token
Most of this is coming from Food tokens, which well get from cards like Gilded GooseGilded Goose and Tireless ProvisionerTireless Provisioner
Check out some of the most exciting cards from the set below
In practice, it's almost identical to what youd do, which is cast to counter their spell, untap, and attack, making the difference nearly negligible with the big upside of having a 3/3 flying creature, which is extremely good
The new designs take advantage of what multiplayer formats can do that duel formats cant, and subtly play up whats fun about those games