Name of the Eternal Pokémon: Tangela-Eternal
New Stat distribution: 80 (+15) / 60 (+5) / 120 (+5) / 110 (+10) / 99 (+59) / 65 (+5) | 534 BST
Signature Move: Vine Decoy - Grass, Other, 5 PP | The user creates a dummy using its vines, and escapes if possible. Basically functions like Substitute + Baton Pass, except Substitute is the only volatile copied. | Z-Effect: Fully restores the HP of its replacement
Design/Flavor: Its vines and shoes are dark gray. It uses its Vine Decoy to make its true self harder to find. Because its vines regenerate, it perpetually ends up in hiding, making the word "elusive" the perfect description for it.
Competitive Analysis: Takes "bulky pivot" to a whole new level. Thanks to Regenerator, its signature move actually results in a net HP gain of 1/12, which, while slightly less than the residual damage taken from Stealth Rock or Spikes, is not too shabby. Although Substitute is not as powerful nowadays thanks to improved sound moves and Infiltrator, it can still prove helpful to offensive threats.
Name of the Eternal Pokémon: Yanma-Eternal
New Type: Bug / Fire
New Stat distribution: 66 (+1) / 115 (+50) / 66 (+21) / 76 (+1) / 66 (+21) / 125 (+30) | 514 BST
Signature Move: Ardent Slam - Fire, Physical, 105 BP, 10 PP, 85% Acc | The user intensifies its temperature, scouts for an opening, and rams into the target. This attack ignores the target's Ability.
Design/Flavor: The green part of its body is yellow. The red parts of its body are hotter than normal. Its wings serve purely for gliding, but it crawls around at an astounding pace. It favors volcanic areas.
Competitive Analysis: While weak to Stealth Rock, a fast physical attacker incapable of being burned is nothing to mess around with. While its dual STABs are walled by Fire-types (although, thanks to the nature of its signature move, not Heatran), its access to U-turn and (weak) Dark coverage somewhat help with that.
Name of the Eternal Pokémon: Piloswine-Eternal
New Type: Ground
New Stat distribution: 104 (+4) / 105 (+5) / 95 (+15) / 65 (+5) / 105 (+45) / 55 (+5) | 529 BST
Signature Move: Pile Up - Ground, Other, 10 PP | The user gathers nutrients from the ground, restoring 50% of its maximum HP. This move has a 25% chance to raise the user's Attack, Defense, Special Attack, Special Defense, or Speed by 1 stage (basically 5% for each).
Design/Flavor: More of a pile than its mortal counterpart. Has shorter tusks and darker hair. Its temperature is not as low, yet somehow its body is more durable.
Competitive Analysis: Its stats are very Muk-like, yet it serves as a defensive Ground-type with Thick Fat and reliable recovery. Curse is a great complement to its stat line.