Today's CotD is Archeops from NV...it'd be so much better if it weren't a Fossil Pokemon...even under the old Fossil rules, it would've been somewhat viable unlike the new rules...
Anyways, statwise 130 HP is average for a Stage 1, x2 Weakness to :grass: is eh, no Resistance is common, and :colorless::colorless: to Retreat is a bit pricey. Ancient Power is a pretty deadly Ability, locking down the ability to evolve Pokemon on either side of the field. This can cripple many decks out there, but again...he's just so impractical to get out, by the time you do likely your opponent will already be set up and not caring. Not to mention one can just use Catcher to bring Archeops up to KO him...Rock Slide is eh, :fighting::fighting::colorless: for a base 60 isn't that great, but dealing 10 to 2 of your opponent's Benched Pokemon helps a bit.
Modified - 2/10 (If only it were more practical to use...not to mention many strong Basics, now and upcoming, kind of limit its Ability)
Limited - 1/10 (Rofl, good luck even getting the right cards to run it, let alone get it out. Seriously, not worth the trouble, odds are that stacked against you seeing it, its attack isn't even that good)
Unlimited - 1/10 (No use here when you have good oldies like Aerodactyl Fossil)