Help making a Dismount ability for hero

I am making a map, and every aspect of it is complete except 1 spell. a dismount spell based on stoneform for a hero.
My idea is this
a priestess of the moon casts dismount and a tiger and a reskined ranger are made. i tried to do this with triggers like this.

event: unit begins casting an ability
condition: ability being cast = dismount
actions:
If level of (triggering ability)= 1
then create 1 Tiger lvl 1 at position of triggerin unit
set tiger=last created unit
If level of (triggering ability)= 2
then create 1 Tiger lvl 2 at position of triggerin unit
set tiger=last created unit
If level of (triggering ability)= 3
then create 1 Tiger lvl 3 at position of triggerin unit
set tiger=last created unit
That works
Then to destroy tiger

Event: A unit is issued an order with no target
condition: Issued order= order(remount)
actions: remove tiger from game

when i cast dismount it works. when i cast remount it summons another tiger, so i made the first trigger like this

event: unit is issued an order with no target
condition: issued order= Dismount
actions:
If level of (dismount) for triggering unit= 1
then create 1 Tiger lvl 1 at position of triggerin unit
set tiger=last created unit
If level of (dismount) for triggering unitthen create 1 Tiger lvl 2 at position of triggerin unit
set tiger=last created unit
If level of (dismount) for triggering unit
then create 1 Tiger lvl 3 at position of triggerin unit
set tiger=last created unit

That didnt work at all so my questions are

(a) how could i make this work?
(b) Am i using the order function wrong because the order functions triggers i made didnt work?
I think it might be that stone form might have a target but i dont know what.

note: the order strings of the actual ability are right.

yea. It doesnt keep the hero level, so idecided to make it like this.

It atually keeps the hero exactly the same... It changes their model and name (not proper name) but keeps same stats level and abilites. Thats why i chose stone form

My real probem now that i notice it is that the If unit is issued an order
order = (_______) doesent work

In the original way i did it (with casting ability not order) it would summon leveled tigers and change the hero. then when i would go back it wouldnt remove the old tiger, just make another tiger Then when i used the issued order function it didnt do anything so i used this trigger

Event: Unit issued and order with no target
Condition: Issued order = Order(dismount)
Action
Quest update display "It woks"

and nothing happened

the only thing u can do is to add an ability to the hero that changes the model, u cant do a dismount

I understand that what i wanted was
when you cast stoneform make a tiger,
changing the model to and archress and making a tiger next to it... I got tat to work. I even got the spell to level, but when casting gargoyl form, it just made another tiger. THen when i changed the event from
Issued ability to issued order, the triggers didit start at all

the stone form of garg is a totally dif skin

yep i know i changed taht and unchanged it press shift and u can set custom orders. thats not he preoblem (or maybwe it is) but im sure that the order and trigger match