What Final Smash Would You Have?

I'd add Modman who's final smash would be anti-spam.
Kills anyone who's spammed moves, and other things.

Claus - PK Starstorm

Claus points 2 fingers at the sky, Yells PK STAAAARRRSTOOORRRMMM!!!

The starstorm Instead of falls down rises Up from below,

The stars are colored yellow and do...i dunno 27% with a 40% sweetspot at the very tip?

Goombate-Goomba Invasion!!!!!!!!

Eyes glow and Goombate does a flip then Loads of Goombas swarm the stage and anyone in the way gets sweeped up. On rare occasions there will be a Spiked Goomba and that does 25% if it touches someone. The goombas themselves do 1% per hit.(100% will rack up in a matter of seconds) there will be Paragoombas that will fly in to hit and flyers or people whoi have tried to jump over the sea of goombas. On super rare occasions a Bob-Omb will drop onto the Goombas which will cary it along to the edge of the stage to automatically edgeguard anyone who tries to get back on. Once the sea reaches the other end of the stage they'll simply fall off and kick the victims away from the stage. Falling Goombas are murder for recovering people they have a high chance of killing. there is a one in 100 chance the Goomba king will appear(who is the same height as the Skyworld stage on Brawl) and he'll just run to the other side of the stage doing 30% damage to people who get hit there is a sweetspot called his crown which will do 60% damage. Goombate has super armour throughout the whole thing. Afterwards Goombate will be invincible for 10 seconds.

Goombate is a random Goomba with a diddy hat who has a random name.

Custom Robo Mk III: The Soulboost. It coult be like warioman you are more powerfull in your attacks

I also agree of Issac´s final Smash but maybe like having the master and crazy hand together.

Kun Lan from Killer 7: God Hand's Bloodbath

Heaven Smiles appear from nowhere and start attacking other characters. They are suicide bombers who can only be killed by attacking its weak point, a tiny yellow spot on a random body part. If they get to you, they explode and do about 30% damage. There will be tons of them too.

Well, if they had Shadow in this game, I'm pretty sure his Final Smash would be something like Chao Control. But if they someone like Mega Man in this game, they could have his Final Smash be something like an "Extra Charged Mega Buster", where he makes a big blast, kind of like Samus, but smaller and more powerful.