Slowpoke, Slowbro/Slowking
Charmander, Charmeleon, Charizard
Bulbasaur, Ivysaur, Venusaur
Nidoran, Nidorino/Nidorina, Nidoking/Nidoqueen
Onix, Steelix
Poliwag, Poliwhirl, Poliwrath/Politoed
Kabuto, Kabutops
Omanyte, Omastar
Azurill, Marill, Azumarill
Houndour, Houndoom
Staryu, Starmie
Tentacool, Tentacruel
Paras, Parasect
Natu, Xatu
Dusknoir
Misdreavus, Mismagius
Masquerain
Kangaskhan
Regigigas
Makuhita, Hariyama
Tyrogue
Kyogre
Abomasnow
Honchkrow
Carvanha
Hippopotas
Rayquaza
Vespiquen
Deoxys
Arceus
I'm sorry, but I don't quite understand the problem. I made a few lines with matching names? I made some names that people unfamiliar with certain subjects may find difficult?
Actually, looking back, most of the ones I posted are the second one, so I guess I can't blame you that much.
Hagnez
Fluine, Pestula
Fetos
Traplure, Axelure
Chompple
Bombillo, Explodillo
Cadeep
Pupatty, Poofly
Docteria
Circat
Hyester, Hylarius
Sicaris, Sicarisand
Lordifer
Angale
(Not really looking for crit on these. Some are old, some are on my revamp list already)
There's more, but I don't know exactly what'd be too difficult for you. It's really all a matter of perspective, you know. The same way you trip over Abuleuco, I had to read Adnokana twice. In other words, Your Mileage May Vary. Similarly, I guess you're not familiar with the idea of using
Light as an element.