The Great Pokemon aren't that great? Think before you speak:
Great Ampharos
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Can stack! And, you can tech in an Ampharos PT with this to shatter the whole format. Ampharos SW also as a tech if you want. And what are these Ampharos compatible with? DCE! And...Mareep can charge themselves, as well as Flaffy, as well as Ampharos HGSS! With Sunnyshore Gym you have no weakness and you get past resistance's. Hippowdon Lv.X an obvious combo. By-by Feraligatr and Gyrados.
Great Feraligatr
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I'm glad you didn't bash him. He almost made LBS come back! With Unown RETURN and Blissy he can remove all damage counters from himself. And Croconaw MT is gold with this.
Great Donphan
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With Focus Band, he's even more a beast. 140HP stage 1 that can do 80 for 1? + his PokeBody which reduces 20? I'll pretend you never said what you said.
Great Blissy
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Great with Pokemon who only use one energy to attack, or with Great Gatr and Great Meganium. He isn't my favorite though due to Power Spray, bench space (Dusknoir), horrible back-up attacker, and the biggest fear of mine, Pokemon Reversal or Luxray.
Great Meganium
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Meganium is more powerful then you think. With Shaymin, he's at 190HP. With Blissy, you get to remove all that without Unown RETURN! And, if hes gonna die, transfer the energy back to the bench with Leaf Trans.
Great Crobat
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For 1 energy, he can do 150 in total at the beginning of your opponents 2nd turn of poisoning. Unown G will bypass but I've got away around this. Weezing GE and Toxicroak make him more a beast, Dugtrio if you don't want them retreating.
Great Urserang
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This is the only one that sucks, 90 for three energy when Mightyena and Gyrados can do 90 for nothing? He's only good if you DCE, then DCE t2 to get 120 damage going. But if you manage to knock him out, there goes hafe his energy acceleration. Then he's kinda toast.
See what I mean? Lugia won't be bad next format if they bring back LBS, and Ho-Oh Legend rocks with Weavile SW and Darkrai MD. Start with Darkrai MD and grab a DCE. Next turn level up, switch to weavile and charge. Once he gets going he's hard to beat. I think you just need to consider the cards these ones combo with, because without the others there horrible. With the others they can dominate,
Deck_Master