Very simple item tracking question

[ZIR]

I know question is simple but i don't know how to do it i've tried now for 15minutes but i don't find a way how it could work.
I want to keep the trigger looking if a item is bought and if one is bought and it is from the Type A the trigger should remove it from the game.

€: Solved, have to use item being manipulated not sold item.
But now i've the next problem i want that the hero which buys this item gets an ability. How can i do this?

€: Also solved.Can be closed

 

[Berb]

Typically you should try to get it to work for more than 30 minutes before posting here. It seems like the first thing you did was ask someone else.