Character: Princess Daisy
Game of Origin: Super Mario Land
Costumes: Super Mario Strikers: Charged Outfit (Default), Dress (Classic Default). Click to see.

Height: Moderate
Weight: Lightweight
Speed: Moderate
Jump: High
Power: Moderate

A Button Attacks

Standard A: Jab (if continued, Double Jab, Spin Jab)
Up + A: Uppercut
Side + A: Roundhouse Kick
Down + A: Leg Trip (via kicking)

Aerial Attacks

Standard A: Forward Kick
Up + A: Backflip Kick
Forward + A: Rapid Triple Punch
Back + A: Backward Kick
Down + A: Meteor Kick (if it makes contact, Forward Punch)

Misc.

Get-Up: Spin Kick
Edge Recovery: Neck Chop

Throws

In Grip: Face Punch
Upward Throw: Uppercut
Downward Throw: Hammer Fist
Forward Throw: Outta Here!
Backward Throw: Swirl and Punch

Smash Attacks

Up + A: Upward Punch
Side + A: Kick and Tackle (Mario Strikers Style!)
Down + A: Bat/Racket/Club Leg Chop

Special Moves

Standard B: Petal Swirl (Daisy spins around once, cutting anyone with petals if they make contact. Compare to Link’s Spin Attack.)

Side + B: Petal Illusion (Daisy assumes a defensive position, and if anyone makes contact with her, she disappears with a trail of petals swaying in the wind, followed up with an aerial meteor kick to the back.)

Down + B: Petal Rainfall (Daisy punches the ground, and a cluster of petals sharply shoot downwards in a scattered formation, hurting anyone within a close range of her.)

Up + B: Petal Swirl (Daisy swirls upward in the air with petals surrounding her, cutting anyone if they make contact with her. Compare to Wario’s Corkscrew.)

Taunts

Up Taunt: Daisy swirls around once and yells, “Alrrrright!”
Side Taunt: Daisy kicks and punches a couple of times and yells, “Is that all?!”
Down Taunt: Daisy winks and laughs a bit.

Final Smash: Petal Storm

Daisy yells out, "Time to really step this up!", jumps into the air, surrounded by an orange and yellow dahlia-like shaped halo, where she fires out a huge blast of razor sharp yellowish petals, each surrounded by a golden light, toward the enemies. If the petals make contact, any opponents who got hit sprout a flower on their heads for an unusually long amount of time.

It's a pretty good moveset. But anyone could make it, moves like those don't depend on someone "knowing her well enough" because none of them have been in any game before.