Fire Emblem character suggestions

[Zabi]

2) Deku Nut.
A spammable Deku Nut.
joy

As for hurt/heal gimmick, you're giving her autohealing at the expense of knockback/damage. Most players will probably resort to a defensive camping game - go on offensive, move to other part of stage, use Sacrifice, dodge/turtle until Sacrifice's effect wears off, repeat. :I

As for the Down-B, it just...feels like FE to have a counter lol.
I'd personally have the counter-attack, but if the opponent connects Sothe knocks the opponent back, does little damage, and gets an item.

Question is, what if items aren't on :/

Well I see your points there... I have no idea what to do about the healing move, but the blinding itself doesn't seem that broken to me. Was Mewtwo's stun like a spammable deku nut? Surely not. You would just have to limit some attributes like the range or speed of the attack.

As for Sothe, I think that sort of counter would be okay, it's at least different from Marth's, Ike's, and Roy's counter (which are basically damage multiplications). You can annoy Diddys, Snakes, Links, etc. with it.

Ton: That kind of reminds me of Ness' / Lucas' Down Special. They absorb projectiles (like the bucket) and heal themselves. But the main idea is quite good. It would prevent the player from some lame "running and healing" gameplay.