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Parents: Heliolisk + Garchomp
Shared Egg Group: Dragon, Monster
Offspring Name: Heliochomp
New Type: Electric/Dragon
New Base Stats: 100/107/88/109/104/120 [BST: 628]
New Ability: Sand Veil
Notable Moves: Thunder Punch, Wild Charge, Thunderbolt, Parabolic Charge, Dragon Claw, Outrage, Dragon Tail, Dragon Pulse, Draco Meteor, Earthquake, Earth Power, Stone Edge, Grass Knot, Fire Punch, Fire Blast, Flamethrower, U-Turn, Low Kick, Focus Blast, Iron Head, Iron Tail, Aqua Tail, Surf, Crunch, Dark Pulse, Poison Jab, Swords Dance, Hone Claws, Agility, Thunder Wave, Stealth Rock, Roar, Sandstorm
Role Identification: Heliochomp has the distinction of being pretty decent in every area (the main exception being its blazing speed), so it can fit nicely into offensive, defensive or support roles. It has the power and movepool to go offensive, but it can also make an admirable tank, albeit with less physical bulk than standard Garchomp (but more special bulk). Using it as a SR lead would work too, since with that speed there aren't too many things that can stop it from getting rocks on the field.
So that's Heliochomp; not overwhelming, but practical. If you want to see something truly terrifying, mega evolve it.
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Parents: [MEGA]
Shared Egg Group: [MEGA]
Offspring Name: Mega Heliochomp
New Type: Electric/Dragon
New Base Stats: 100/147/108/149/114/110 [BST: 728]
New Ability: Sand Veil --> Sand Force
Notable Moves: Thunder Punch, Wild Charge, Thunderbolt, Parabolic Charge, Dragon Claw, Outrage, Dragon Tail, Dragon Pulse, Draco Meteor, Earthquake, Earth Power, Stone Edge, Grass Knot, Fire Punch, Fire Blast, Flamethrower, U-Turn, Low Kick, Focus Blast, Iron Head, Iron Tail, Aqua Tail, Surf, Crunch, Dark Pulse, Poison Jab, Swords Dance, Hone Claws, Agility, Thunder Wave, Stealth Rock, Roar, Sandstorm
Role Identification: Meet the meta's worst nightmare. Fantastic mixed attacking stats, two great STABs, a solid defensive spread of 100/108/114, decent coverage, and it's
still blazingly fast even with the speed reduction that comes with mega evolution.
In spite of all that, I think that Heliochomp has a few flaws that keep it from being too ridiculous, namely a not-very-good ability, no means of recovery outside of Parabolic Charge, and no way to boost its Special Attack.
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Parents: Swampert + Feraligatr
Shared Egg Group: Monster, Water 1
Offspring Name: Swampatr
New Type: Ground/Water
New Base Stats: 107/122/110/97/101/84 [BST: 621]
New Ability: Torrent
Notable Moves: Earthquake, Earth Power, Waterfall, Aqua Jet, Aqua Tail, Surf, Scald, Hydro Pump, Ice Punch, Ice Beam, Power-Up Punch, Low Kick, Superpower, Counter, Mirror Coat, Crunch, Iron Tail, Sludge Wave, Endeavor, Dragon Tail, Dragon Dance, Swords Dance, Hone Claws, Stealth Rock, Roar, Yawn
Role Identification: Take your pick, really. It has the bulk necessary to fulfill Swampert's usual role as a tanky hazard setter/phaser, but it also has more than enough power to pull off a sweeping set. However, its status as a sweeper is hampered by its underwhelming ability and limited coverage, so defense is probably the best way to go. Besides, if you really want to go offensive, it has a mega evolution for that...
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Parents: [MEGA]
Shared Egg Group: [MEGA]
Offspring Name: Mega Swampatr
New Type: Ground/Water
New Base Stats: 107/162/130/107/121/94 [BST: 721]
New Ability: Torrent --> Swift Swim
Notable Moves: Earthquake, Earth Power, Waterfall, Aqua Jet, Aqua Tail, Surf, Scald, Hydro Pump, Ice Punch, Ice Beam, Power-Up Punch, Low Kick, Superpower, Crunch, Iron Tail, Sludge Wave, Stone Edge, Endeavor, Dragon Tail, Dragon Dance, Swords Dance, Hone Claws, Rain Dance
Role Identification: Holy GUAC. You've got a gargantuan attack stat, more bulk than any sweeper has the right to have, access to both Dragon Dance and Swords Dance, and a speed tier in the rain that not even scarfers can match. And if you think it needs rain support in order to function, you're sadly mistaken, because there are
very few who can hope to outspeed it after a single Dragon Dance, and it'll reward those who can with an Aqua Jet to the face.
Like Heliochomp, though, it has a few drawbacks. It has a relatively unimpressive SpA stat and limited coverage options, so it's a fairly one-dimensional and predictable sweeper. It's one of those fusions that does
one thing extraordinarily well.