There probably are allied color archetypes, but this set is dense and a cursory examination seems an even poorer substitute for playtesting than normal
Those cards supplanting Surgical Extraction has a bunch of other impacts on the rest of the format, allowing decks like Esper Reanimator to exist
Elspeth protects herself, controls large creatures, and eventually overwhelms the table with tokens
draw unlimited cards, and then box the other players out of the game
This precon gave us some phenomenal new cards: Pyreswipe HawkPyreswipe Hawk, Alchemists TalentAlchemists Talent, and my personal favorite, Rolling HamsphereRolling Hamsphere And it didnt skimp on the reprints either, with hits like: Tendershoot DryadTendershoot Dryad Greater GoodGreater Good Grothama, All-DevouringGrothama, All-Devouring Check out my full review here