This is a tough question and the answer is always subjective
Mime (Jungle) 2/2 Claydol (Great Encounters) Other Options: Absol (Secret Wonders) - As it stalls with Alakazam, you can continue discarding cards from your opponent's hand Blissey EX (Unseen Forces) - It absorbs a lot of damage from Damage Swap and its Power works amazing with Hyper Devolution Spray Drifblim (Stormfront) - Its Lifting attack can be used to pick up discarded Pokemon Center, Scoop Up, Hyper Devolution Spray (for Blissey EX), ER/SER
Harnessed Lightning could just be Incendiary Flow, of course, but it does a couple of very important things in this list
Why you should look at Japanese secondary markets when buying from overseas Japanese version Pokmon cards have many product numbers, promos, and limited specifications that do not appear in overseas distribution, and the number of cards you can find will increase significantly if you look at the Japanese secondary market
It also synergizes well with the fighting werewolves like Tovolar's Packleader or Ulrich, Uncontested Alpha, or becomes a straight-up win condition if you have a board of creatures and cast Blasphemous Act, sending all that damage to our opponents' faces
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