>>40416602>>40416632Suicune, Krabby, Wishiwashi, Ludicolo, Volcanion, Empoleon, Vaporeon, Samurott, Phione, Remoraid, Seadra, Jellicent (big news here), Sharpedo, Azumarill, Golduck, Alomola, Floatzel, Milotic, and Wailord ALL have lightning weakness as water types.
MOST of those are pure water. There are some exceptions, ones that resist grass with their second type, for instance. And of course all the water/flying not mentioned have lightning weakness too.
But that means that tcg weakness tells us JACK SHIT about Intelleons typing, other than it's not dual weak to grass.