So I found out about this mod earlier today and I have been frantically fusing everything I can think of. Sadly, Cheek Pouch + Harvest and Skill Link + Technician aren't possible according to my research, while Sniper + Super Luck provides not many viable mons. So, I instead have these six:
Parents: Breloom and Whimsicott
Shared egg group: Fairy
Offspring name: Whimsloom
New type: Grass/Fighting
New base stats: 70/108/92/78/77/103
New ability and desc: Apothecary (Poison Heal + Prankster) - When poisoned, this pokemon's status moves have +1 Priority and it heals by 1/10 of its max HP each turn.
Notable moves: Spore, Wake-Up Slap, Encore, Drain Punch, Synthesis, Bullet Seed, Seed Bomb, Cotton Guard, Leech Seed, Swords Dance, Knock Off, Tailwind, Taunt, Toxic
Role identification: Extreme support mon with many opportunities to cripple opponents before they can hit it, immunity to status thanks to Toxic Orb, and lots of ways to heal itself to remove any damage it happens to take. Spore + STAB Wake-Up Slap can deal pretty solid damage if necessary, or Drain Punch for the ability to heal while you hurt the enemy.
Parents: Lopunny and Deoxys-Attack
Shared egg group: DNA
Offspring name: Lopxys (pronounced LOP-sis)
New type: Normal/Psychic
New base stats: 57/148/62/117/68/127
New ability and desc: Anxiety (Klutz + Pressure) - Opponents' items lose their effects until they switch out
Mega Type: Normal/Fighting
Mega base stats: 57/208/72/117/68/157
Mega Ability: Scrappy
Notable moves: Fake Out, Extreme Speed, Last Resort, Drain Punch, High Jump Kick, Cosmic Power
Role identification: Extremely fast, traumatizingly powerful FakeSpeed user. Two free hits on switch in with an attacking stat higher than anything else in the game makes this pokemon almost assured one kill. Ghosts can't hide because of Scrappy, and Rock and Steel types are destroyed by its fighting moves. Unfortunately it has a rather low HP stat, which is not aided by its poor defenses. Most things that hit it that have any amount of power will kill it, and it does not appreciate Foul Play. Cosmic Power can be used to lessen its fragility, but in the end it will likely amount to little.
Parents: Furfrou and Umbreon
Shared egg group: Field
Offspring name: Furfreon
New type: Normal/Dark
New base stats: 95/82/95/72/120/93
New ability and desc: Silky Coat (Synchronize + Fur Coat) - This pokemon's defense is doubled. If the opponent is suffering negative status, this pokemon's defense is tripled.
Notable moves: Wish, Rest, Sleep Talk, Heal Bell, Moonlight, Foul Play, Cotton Guard, Toxic, Taunt
Role identification: With 95/190/120 bulk (and that's WITHOUT the opponent being statused) and access to multiple recovery and curing moves, Furfreon is an exceptional wall. Furfreon can defeat high Atk opponents with ease through any mix of Cotton Guard, Toxic, and Foul Play, then heal its wounds with Moonlight to prepare for the next foe. Or it can take down opposing walls with Toxic, Taunting them to prevent them from recovering. If Furfreon is unfortunate enough to be statused itself, it can cure itself with Heal Bell. Its main weakness is its fairly impressive, yet pathetic in comparison, Special Defense, as it is less able to reliably tank and damage special attackers, though it can perform adequately in such a role if it must.
Parents: Diancie + Ferrothorn
Shared egg group: DNA
Offspring name: Diathorn
New type: Fairy/Steel
New base stats: 82/97/160/77/133/35
New ability and desc: Crystal Barbs (Clear Body + Iron Barbs): When hit by a contact move or a move with a chance to lower stats, the attacker takes 1/8 of their maximum HP as damage.
Notable moves: Leech Seed, Stealth Rock, Swords Dance, Curse, Bullet Seed, Seed Bomb, Power Whip, Diamond Storm, Explosion, Gyro Ball, Iron Defense
Role identification: Another good wall, Diathorn focuses on Crystal Barbs + Rocky Helmet to wear down opponents. With 82/160/133 bulk and the best defensive typing in the game, it can reasonably defend against most threats. It also has the ability to deal a fair bit of damage following a Swords Dance boost, though Curse can also be run due to its lack of speed. Offensively it can run many different attacks, depending on what the team needs for coverage and your own personal preference of move choice. Defensively it gets Leech Seed and Heal Bell, though it sadly lacks in more reliable recovery.
Parents: Manaphy and Alakazam
Shared egg group: DNA
Offspring name: Manakazam
New type: Water/Psychic
New base stats: 77/95/72/117/97/130
New ability and desc: Calming Rains (Hydration + Synchronize) - In rain, this pokemon cures its status conditions and then transfers them to the opponent. This pokemon is immune to status in the rain.
Mega Type: Water/Psychic
Mega base stats: 77/95/92/157/97/160
Mega ability: Trace
Notable moves: Tail Glow, Psyshock, Psychic, Scald, Charge Beam, Focus Blast, Shadow Ball, Ancientpower, Energy Ball, Ice Beam, Surf
Role identification: Tail Glow sweeper with extremely high natural speed. Little to say strategically. Extremely varied offensive movepool that gets outstanding coverage. Ancientpower and Charge Beam can be included to stack up extra bonuses after Tail Glow is used. Psyshock allows Manakazam to break through special walls unopposed. Decent-ish 77/92/97 bulk will allow it to live hits from a fair amount non-extreme offense pokemon, making setup easier. Mega into Trace to get a better ability.
Parents: Mew and Pidgeot
Shared egg group: DNA
Offspring name: Mewgeot
New type: Normal/Psychic
New base stats: 92/90/88/105/85/121
New ability and desc: Observer (Keen Eye + Synchronize) - If this pokemon is statused, its attacks always hit.
Mega type: Normal/Psychic
Mega base stats: 92/90/93/170/95/141
Mega ability: No Guard
Notable moves: Hypnosis, Dream Eater, Zap Cannon, Inferno, Focus Blast, Hurricane, Blizzard, Fire Blast, Thunder
Role identification: A fast special sweeper and utility in one, Mewgeot is capable of inflicting one of three statuses at any given moment. Hypnosis allows for an immediate sleep, while Dream Eater can swiftly follow to recover damage taken and hit with a powerful STAB move. Zap Cannon and Inferno can easily check any threat to you that sleep cannot, by simply paralyzing or burning the enemy depending on your situation while also hitting with 100 BP at a 170 base SpA stat. If you instead prefer direct damage, you can use any of the above. Unfortunately, Mewgeot gets few viable STAB moves, however its Normal/Psychic typing is much better than the alternative Flying/Psychic defensively, having only two weaknesses instead of five.