Name(s): Eelektross
Type: Electric / Poison
Justification: The blood of eels is known to be toxic to mammals, including humans. In addition to this, its pre-evolution, Eelektris learns several Poison-type moves by level-up.
New Moves: Sludge Bomb, Sludge Wave, Poison Jab, Poison Fang
Removed Moves: None
Altered Abilities: None
Name(s): Grimer, Muk
Type: Poison/Electric
Justification: They are able to know Thunder, Thunderbolt, Thunder Punch and Shock Wave, and are the only pure-Poison types that are able to. Grimer and Muk are also found in the Power Plant in Pokemon Yellow.
New Moves: Eerie Impulse, Magnet Rise, Charge Beam, Ion Deluge
Removed Moves: None
Altered Abilities: None
Name(s): Manectric (and Mega Manectric by extension)
Type: Electric/Poison
Justification: Manectric is partly based on Raijuu, which in some Japanese folklore is described as being able to release poisonous gases.
New Moves: Poison Gas, Poison Sting, Poison Fang, Poison Jab, Smog, Venoshock, Sludge Bomb, Sludge Wave,
Removed Moves: None
Altered Abilities: None
Name(s): Porygon, Porygon2, Porygon-Z.
Type: Poison/Electric
Justification: It's inorganic, yet not Rock or Steel type. I have difficulty imagining that vectors are delicious and nutritious, even if that's a bit of a stretch of the Poison type. The Electric typing is a bit more obvious: it's a program. Plus, it learns pretty much everything Electric types normally learn
anyway, like Thunder Wave...also Eelektross was already taken. :(
New Moves: Sludge Bomb. (See Regigigas)
Removed Moves: None
Altered Abilities: None
Name(s): Jolteon
Type: Electric / Poison
Justification: Pretend its fur is tipped with poison.
New Moves: Sludge Bomb, Poison Sting, Poison Fang, Smog, Toxic Spikes
Removed Moves: None
Altered Abilities: Quick Feet -> Poison Point
Name(s): Garbodor
Type: Poison / Electric
Justification: Did you know this thing learns Thunderbolt? Odd choice, and it can't even be explained by the Muk excuse of "random-ass Gen 1 learnsets." However, it makes more sense if you think of that metal wire running through its left arm as an electrical chord. Electronic waste makes up a lot of what modern society throws away, and the Pokemon world seems just as electronically inclined as our own. Wouldn't it be logical that Garbador contains a few parts of a thrown-away Pokedex and some material from an old power plant?
New Moves: Thunder, Volt Switch, Wild Charge, Zap Cannon, Charge, Discharge, Thunder Wave
Removed Moves: None
Altered Abilities: None
Name(s): Ekans->Arbok
Type: Poison/Electric
Justification: Snakes are similar to electric cables in looks and just imagine the poison has a stunning effect on the nervous system, so it's not too farfetched to combine the idea of poisonous snakes with electric properties. It already learns Thunder Fang as Arbok, and it has a yellow/purple colour scheme, mostly seen as Ekans- which is also when the body shape is most similar to electric wiring. Also, if you add an Electric element to the designs, Arbok's intimidating patterns could potentially be something that glows (think Watchog reflective vest idea) which creates more effective intimidation strategies AND gives the whole different belly patterns a much more interesting angle. Ekans eyes would also be more intimidating if it glows and they kind of look like evil headlights as is. If anything, it would be fun to use an Intimidate Arbok with Volt Switch as you absorb your enemy's Toxic Spikes.
New Moves: Thunderbolt, Thunder, Thunder Wave, Volt Switch, Spark, Wild Charge, Eerie Impulse
Removed Moves: None
Altered Abilities: None
Name(s): Tentacruel
Type: Electric / Poison
Justification: Jellyfish are often associated with electricity (For some reason) and Tentacruel is a jellyfish itself, so why not make it an electric type? Tentacruel also has base 100 speed, which could be considered to be on par with other Electric types, as well as glowing body parts, another common feature of Electric types. Also, there is nothing really special here by me removing the water type from a water type sea creature opon evolving, since Dragalge does the same thing. The new moves here are to add onto its new electric type and the moves Hydro Pump, Brine, and Scald are removed since Tentacool doesn't learn them past the level of evolving and typically only water types get these moves.
New Moves: Thunderbolt, Thunder, Discharge, Charge Beam, Wild Charge, Volt Switch, Magnet Rise, Electroweb
Removed Moves: Brine, Scald, Hydro Pump
Altered Abilities: None