GadgetJax said:
Here's a list of all the Tier 1 and 2 cards we would lose from an XY-on Format, each with a note on what they did.
(List removed to conserve space.)
A few other cards that will be missed if XY-on is the case.
Reshiram BW/ LTR (Outrage)
Jax listed the Outragers as a whole, but Reshiram gets special mention since Blue Flare is also good. Has seen use as of late comboed with Pyroar and/or Seismitoad. A solid Pokemon with two strong attacks that can easily be powered up via Blacksmith, or in the case of Outrage a DCE.
Max Potion
Despite all the new and awesome Fairy cards, losing this is going to hurt. A lot. Super Potion really doesn't fill in the role of this card. This is pretty central to Fairy's strategy, but has seen use in other decks as well.
Random Receiver
Hasn't seen a whole lot of play lately, but is part of the "cancer" draw engine that some Seismitoad decks have used as of late. Loss of this card will drastically reduce this engine's power. Critical in decks that run low Supporter counts.
Tornadus-EX (DRX/ Promo)
This card saw use in older Big Basics decks and is still occasionally played for its Fighting resistance. Being able to hit a quick 60 if there's a Stadium in play can be good. Power Blast is also a strong attack if you can afford the energy and don't get too many tails.
Emboar BW/ NXD / LTR
Fire's answer to Blastoise. Somewhat outclassed by Blacksmith and a lack of a an attacker with KO power to pair with like Rayquaza-EX, which rotated. Could be partnered with Camerupt-EX, but suffers from the usual Stage 2 problems.
Energy Retrieval / Superior Energy Retrieval
Important for Blastoise and Emboar decks that discarded lots of energy to attack. Energy Retrieval was reprinted as a Japanese promo, so we may see it re-introduced. Supier Energy Retrieval is the far more powerful card however, and has not been reprinted sinec Plasma Freeze.
Absol PLF
Used in some Dark decks as a non-EX attacker, has seen less play since Dark Patch rotated and Pyroar started existing. Good for hitting Safeguards, but won't do anything to a Pyroar.
Mew-EX
Has resurfaced as a useful card with the release of Phantom Forces. Dimension Valley makes its attacks quite viable, as it can copy the moves of other Pokemon for one less energy. Still iffy due to its low HP, but in the right deck can lead to some powerful combos.
Shaymin-EX
Okay late-game card that's played in some VirGen and Fairy lists. Fragile, but Revenge Blast can do a lot of damage for little energy if you opponent has taken most of his or her prizes.
Professor Juniper
Hey, some of us have lots of this card since we've been playing since BW started. Now I'm going to have to hunt down three more playsets of Sycamore, who doesn't have a full art (yet).