PHYREXIAN METAMORPH Like counterspells, blue has an affinity for clones
With so many options out there to pick from, you might as well start with the best that the format has to offer and go from there
The former could hit cards like Birthing Pod, Cryptic Command and Splinter Twin all of which were important, but the latter was better versus Burn and Zoo, and also back then manabases were a lot more painful as decks were more reliant on Shocklands, which meant a turn one Thoughtseize commonly saw you at 15 life from the get-go
Evasive bodies, such as those produced by Sai, Master Thopterist, make increasing your speed trivial
You have the Burnished Hart, and Solemn Simulacrum and the Duplicant
If you like winning through combat damage, youll probably have a lot of fun building around this commander