Victini
Fire / Psychic ---> Fire / Fairy
Victory Star ---> No Guard
100/100/100/100/100/100 BST 600 ---> 100/125/100/155/100/120 BST 700
Vicitni now gets Play Rough and Moonblast
Concept: Victni has 2 sets in standard - physical V-Create spam and special with powerful event moves. No Guard was chosen because most of victini's moves do not have perfect accuracy. This isn't a huge problem due to Victory Star granting 1.1x accuracy. No Guard is the next logical step, letting it use low accuracy moves without fear. Now you might notice a huge special bias instead of physical - that's because V-Create, the main reason to use physicaltini, is much better off as a choiced attack, and lets normal victini still have purpose, as its V-Creates are stronger with a boosting item. However, 125 w/o boosting item is still strong, and it is faster than non-scarf victini with 125 speed. The main focus here is special offense though - No Guard lets it spam moves like Thunder, Inferno, Focus Blast, and other low accuracy moves. The new moves it gets are Play Rough and Moonblast for Fairy STAB. Speaking of Fairy, the reason for that is it is a much better typing for Vicinti, giving it some neat resists and, more importantly, not pursuit weak.
Galvantula
No Type Change (Electric / Bug)
Compound Eyes / Unnerve / Swarm [HA] ---> Compound Eyes
70/77/60/97/60/108 BST 472 ---> 70/77/75/147/65/138 BST 552
No New Moves
Concept: So Galvantula mainly has 2 "niches" (well ok one) - Compound Eyes Thunder and Sticky Web. The latter is already pretty neat, as its STABs threaten the (current) common Magic Bouncers. However, it has been held back by its kind of bad Special Attack - 97 is not very good. So the main things focuses here are its SpA and Speed. While its Speed is pretty good, a buff would be much appreciated. 138 is really fast - allowing Galvantula to get its web up easier. The Special Attack boost is much needed, now letting it smack things around with Thunder. The SpA is still kind of low compared to other Mega Mons, but its strong enough, especially with Thunder. The extra bulk is minor but lets it take some weaker prioirty attacks.
Feraligatr
Water ---> Water / Poison
Torrent / Sheer Force [HA] ---> Strong Jaw
85/105/100/79/83/78 BST 530 ---> 85/160/105/79/103/98 BST 630
Feraligatr now gets Fire Fang, Thunder Fang, and Poison Fang
Concept: So Feraligatr is just a simple Dragon Dance mon. However, I decided to make it a Strong Jaw abuse mon, considering its design and how the coverage from the fang moves are neat. The speed is still kind of slow - 98 is only ok. However, it has a huge 160 attack. Water / Poison works as a bulky typing, with Crunch being a decent coverage move thanks to Strong Jaw. Another intersting point is that Poison Fang has decent power - 75 BP before STAB - but a 50% chance to badly poison things. This makes Feraligatr a very intersting poke. It can run SD and DD easily - 98 is just fast enough to work with Dragon Dance, while Sword Dance can break walls and still use its powerful Aqua Jets vs offensive teams. Again, Poison Fang is an interesting move as a wall breaker, as it has a 50% chance to badly poison things, mainly walls which hate it. Originally it was going to be Water / Dark, but that feels a bit bland, even though Strong Jaw Crunch would smack things with STAB on it. I feel that the Poison sub-typing along with Poison Fang is much more unique to it.