Okay, so I played against the character and checked out some details and... despite the amount of time it took, it has many glaring issues. I'm not a specialist, but here is what I found:

• His normals have infinite priority, which, I get that he wields a spear, but that doesn't mean said spear should have a giant red box and no blue box to make the Elder vulnerable.
• His cloak ability makes him invulnerable as he transitions from non-cloaked and cloaked, which definitely should not be a thing.
• His summon supers also make him invulnerable, and worse than that, the net super and bladed projectile supers are unblockable and deal a lot of damage. The summon that bombards you is blockable but it deals a lot of chip damage as well. I think all of those could be toned down by making the Elder stay vulnerable and able to attack, but drastically reduce the damage and utility of the assistance that the rookies give. Like, have the star-throwing one throw only two low damaging stars that are blockable to apply pressure, have the net one be a simple stun and the blast one be like two shots for zoning and also lower damage.

It looks like the char is a few years old already. But no matter. Here's some feedback:

- The character and the background colors are too similar. You could make the stage a bit darker, or give them different hues, or both
- It's too vulnerable to spamming crouching attacks. You could make it like if the char receives X hits or damage, it will retreat with invincibility. Or make every hit push it back
- The eggs take longer to hatch if you skip the intro. You should make them hatch in roundstate 2
- I don't know how it happened but there was one round where it stopped taking damage. I'd hit it but its life would not go below 500
- The helpers could do more damage
- If you stand still and let it come to you, sometimes it will stop at a range where it's not programmed to attack, so it'll just stand there

In a nutshell the char is hard to see but easy to beat.

When you say

sergeus said, May 17, 2020, 12:55:14 am

  and the player position must be always the same of that helper.

Do you mean player 1, or player 2?
Also, are you having trouble moving the helper, or getting the character to move to it?

type = posset
triggerall = numhelper(****)
trigger1 = -insert condition here-
x = helper(****),pos x
y = helper(****),pos y

 This is pretty much a common hack to emulating bindtohelper. You can also add to or subtract from (i.e.: helper(****),pos x-100 will always have you 100 pixels away from that helper's backside since what side the helper is facing is factored in) the helper's pos to adjust how many pixels your character will be next to or away from the helper in question as well.

now we can speak about other two situation.. from the floor (but i think that i can do alone)
just how can i make the fireball disappear when it hits the floor? I can't use the frontedgebodydist on the floor!

[Statedef xxxx]; this is the helper appearing from the player1
type = A
movetype = A
physics = N
sprpriority = 3
anim = xxxx; the fireball

[State xxxx, VELX]
type = VelSet
trigger1 = TIME = 0
x = 5 ; the velocity you want

[State xxxx, nopush]; i think you dont want it to be push...
type = playerpush
trigger1 = 1
value = 0

[state xxxxx, HO] ; if you want the fireball to be hit
type = HitOverRide
trigger1 = Time = 0
time = -1
attr = SCA, NA, NP, NT, SA, ST, SP, HA, HT, HP
slot = 0
stateno = XXXX; state vanishing or exploding
ignorehitpause= 1

[State xxxx, ]; change to the new helper in the edge of the screen
type = ChangeState
trigger1 = frontedgebodydist <= 0
value = xxxx ; the state of the new helper

;--------------------------------------------------
[Statedef xxxxxx] ; new helper in the edge
type = A
movetype = A
physics = N
sprpriority = 3
anim = xxxx ; whatever...

[State xxxx, turn]
type = turn
trigger1 = anim = xxxx
trigger1 = animtime = 0

[State xxxx, VELINI]
type = VelSet
trigger1 = TIME = 0
x = 0

[State xxxx, nopush]
type = playerpush
trigger1 = 1
value = 0

[State xxxxx, 2] ; the hit or whatever you want
type = HitDef
trigger1 = 1
attr = S, NA
animtype  = light
damage    = 50,5
getpower  = 50
hitflag = MA
guardflag = MA
priority = 5, Hit  
pausetime = 0,0
sparkno = S920
guard.sparkno = S900
sparkxy = ceil(-8*const(size.xscale)), ceil(-30*const(size.yscale))
hitsound   = S2,0
guardsound = S3,0
ground.type = high
ground.slidetime = 16
ground.hittime  = 16
ground.velocity = ifelse(p2movetype=H, -2, -6),ifelse(p2movetype=H, -5, 0)
airguard.velocity = -4,-3
air.velocity = -4,-5
fall = 0
air.fall = 1
persistent = 0

[state xxxx, 0] ; if you want to make possible to hit it
type = HitOverRide
trigger1 = Time = 0
time = -1
attr = SCA, NA, NP, NT, SA, ST, SP, HA, HT, HP
slot = 0
stateno = xxxxx
ignorehitpause= 1

[State xxxxx, 3]; go or something
type = ChangeState ; or destroyself
trigger1 = animtime = xxxx
value = xxxxx