Triggering help

Triggering help

I have a little problem....
Well, i am making a map and y make item fusion...
The question is:
since I make to fuse two equal items with another one?

Sorry mi inglish, i am Argentino

i mean, how two fuse two of the same items into 1 other right?

Events: unit acuires an item
conditions: item type = .......
actions:
if: hero manipulating item has ..... (same item as in the condition)
then: remove those two items and create item for hero manipulating item
else: do nothing

Ramzai mean, how two fuse two of the same items into 1 other right?

Events: unit acuires an item
conditions: item type = .......
actions:
if: hero manipulating item has ..... (same item as in the condition)
then: remove those two items and create item for hero manipulating item
else: do nothing

Sorry but... it doesnt work...
Look, i will copy what i do with example items..., mi world edit is half spanish half english
Acontecimiento:
Unidad - A unit Adquiere un Objeto
Condiciones:
And - All (conditions) are true
Condiciones
((Hero manipulating item) has an item of type Potion) igual a true
((Hero manipulating item) has an item of type Potion) igual a true
Acciones:
Objeto - Remove (item carried by (Hero manipulating item)of type Potion
Objeto - Remove (item carried by (Hero manipulating item)of type Potion
Heroe - Create SuperPotion and give it to (Triggering unit)

I make that but it doesnt work anyway.... the item is created with 1 potion and no with 2... plz, i need this to continue mi map

ofcourse that doesnt work, u didnt read it right, look

events: unit acuires item
conditions: acuired item is potion
actions: if: hero manipulating item has potion
then: .........