So my ideas for a Smash based tactical RPG was more or less Fire Emblem x Smash Bros. Imagine a sort of World of Light / Subspace Emissary situation, Heroes tagging along with each other against villains. But this time you just start a "route" of characters that group together based on the franchise they come from.
Mario would be much like an allrounder with average to above average stats and growths. Lower HP, but good bases and growths. Everything being around 55%. Attacks are neutral, jumps on the head of enemies, for ranged attacks he throws fireballs doing Magic based damage. No weapons, unless you equip him a hammer which counts as an axe. Has a very high Skill growth, around 70%. Functions as a sort of Lord / Hero archetype unit.
Luigi is as Mario but a bit more shakey growths, worse bases, but growths less stable, 60% for his better stats as defense, resistance, HP and Luck, 40-45% for his offensive stats. Skill is like Mario, very high. Attacks are more or less the same as Mario's.
Peach attacks using items, very low bases but good growths, especially in Magic, Skill, Luck, Resistance and Speed. A Toad automatically teams up with her, giving her the skill Miracle (saving her from otherwise fatal blows, giving her 1HP). Toad has Counter as ability, with a low activation rate. Other than that, Peach can Heal. She's basically a War Cleric of sorts.
Yoshi is another character, and there are more of them recruitable, each color basically having their own statistics, so a somewhat customisable character. His tongue has 1-2 range, basically a all around ranged Paladin, has the Skill Double Guard if paired up with. Very adaptable character who always has high Speed and Movement.
Toad are your regular grunt enemies, you can recruit many of them over time, some using weapons. Shy Guys too, using Spears most often. They have lower movement and not so great growths, making them some what sacrificial lambs as units.
Captain Toad is another unit you can recruit, probably doing something funny as raising a regular Toad to a high level or keeping them alive for so long. He joins up with Toadette. Both have higher stats, Toadette excelling in Speed, Captain Toad in Strength and defense, his pickaxe functions as an axe.
Daisy is a more balanced Peach without the Miracle Skill and the Toads. She's an Echo Fighter anyway, don't complain. Also can't heal but has way better Strength than Peach.
Wario is the anti Mario, having high HP, very high Strength, but low Speed and Skill. Can ride his Bike though for high movement attacks, and has inbuilt Canto skill with his Bike. Projectiles do less damage through a skill. Potential weakness is no projectiles and no Magic. Can also pick locks, he's like a fat Assassin without the Speed and Stealth.
Bowser of course acts as a villain quite often, but eventually is recruitable. Highest HP and Strength, bad Speed but good Defense. Good movement however, so even if he'd be build like a typical armor unit, he has movement to boot, and 1-2 range due to his Fire Breath. A mix between a armor and dragon unit, but no weakness to weapons or attacks strong against armor or dragons. Bad Luck so criticals are more common against Bowser. Joins at a higher level and has very strong bases.
Bowser Jr. and the Koopalings, they are basically your flying units, with 1-2 range due to their Koopa Mechs. Bowser Jr. has the most balanced stats, along with Wendy, Morton has the highest Strength, Larry the highest Speed. All come with strong pair up abilities, and give Bowser the Miracle Skill. They all serve as enemies and bosses at some point too, obviously.
Rosalina has very high Magic and Skill, comes with Lumas of course that give her stats a boost, and pair up abilities. Very late recruitable unit, kind of like the Naga of the Mario universe literally. Very strong bases but joins at a high level. High Luck, Magic, Skill and has the Miracle as well as Sacrifice Skills. Can Heal too.
Overlapping with the Mario Universe you'd have the Donkey Kong Universe too. They will always overlap with each other eventually, depending on which route you play.
You have Donkey Kong of course who boasts very high HP and Strength but has good bases all over. Can easily gain 2+ stat gains in these. Average Speed and Skill, above average Defense and Luck, but low Resistance. Basically your Warrior / Berserker , attacks with punches but can throw barrels and objects he finds on the map. No Magic either, but can find random Bananas lying around that he can use to heal. Has the Smite Skill that's actually damaging. Also could have a Skill that's basically Sol (heals upon impact). As another skill with Ground Slap that damages enemies surrounding DK, with potential of stunning.
Diddy is your typical dodge tank, with very high Speed and Luck, average HP, Attack and Defense. Diddy starts at a lower level, but has good growths in the offensive stats, particularly Strength, Skill, Speed and Luck. Consider him like a trainee unit, a early Est archetype with better bases. Has pair up Skills with DK and Dixie that greatly increase DK's Speed and Skill upon paired. Has 1-2 range due to the Peanut Popguns. Also has low Resistance and no Magic.
Both Kongs can traverse thick forests and mountains with little penalties. Can traverse regular woods with no penalties and have high movement. They seem stronger than the Mario cast here cause you start off with only DK and Diddy, and the struggle here is keeping Diddy alive and get him some kills so he can catch up and grow.
You also recruit Dixie later who's another Est archetype. Similar stats to Diddy, lower Strength and Speed but higher Skill. Seems weaker at first but comes with the best pair up bonuses. Gives the Miracle Skill to the other Kong she pairs up with. Diddy and Dixie give each other very strong Support bonuses too.
You can sometimes find Animal Buddies on the map too, they're in crates but heavily guarded. Freeing them gives you a strong ally for one map, and every kill the Animal Buddy makes gives the Kong paired up with them experience too. So definitely worth it. Rambi for example has very high Strength, Defense and HP, but Expresso has high Speed and Skill. Enguarde you can find near water bases. Squaks allows you to fly. Squitter is good for setting traps and distance attacks.
Now here comes Cranky. He attacks using his Crane or the Crystal Coconut, which allows Cranky to temporarily change into the Arcade DK of the past, sprite and all. The Crystal Coconut is Magic based damage, giving the DK Crew a much needed Magic attacker. Cranky has good bases but not so great growths in everything but Magic. So Cranky could basically function more or less as the Jagen archetype character (good bases and bad growths). He does carry a lot of healing potions however.
Funky is another recruitable Kong. He's like DK, but joins at a much higher level, has great bases but worse growths than Donkey Kong. He can do everything DK does, but traverses water way easier than the rest due to his surfboard of course.
I'll type out more of this later.