Many deck now rely on a pokemon's power, or a strong evolution pokemon
to power their decks. But now that fossil is released
along with Muk and Aerodactyl, these decks will be practically
inoperable. Aerodactyl's power that stops evolution will put an end to
any deck that requires evolution. Muk's power that disables pokemon
powers will horribly screw the Energy Trans and Raindance decks that are
so commonly used, and rely so patheticaly on the pokemon powers that
these pokemon have.
    I currently use a fire deck that uses basics to fend off the enemy,
and Stage 1 pokemon like Rapidash, but almost every deck uses at least
one evolved pokemon. Decks like this will be in for a shock when they
start to see Muks come down onto Grimers, and Aerodactyls pop onto their
opponents bench. Although these pokemon cannot be used in conjunction
with one another, because of their powers, they will be turning up in
thousands of decks. People that use evolution decks will need to give up
their Blastoise and Venusaur, to perhaps be of no use to them again. At
the least, they would have to add powerful basics and more gusts. I
believe that the Fossil expansion will need to be saved up for, watched
out for, and very annoying to people that like their Stages.

Thanks for reading,
Gregory Whitaker
whitakergregory@hotmail.com