What makes spells appear in a hero's UI

[knight_rider]

What is it that makes some spells appear as buttons in the UI box, and some not. For example, the ability 'sphere' does not appear for the bloodmage, yet whatever i seem to do to other abilities they still appear, even if they only appear as fluroescent green squares with 'tooltip missing'. Any ideas on how to make them go away? I tried using item abilities, but many of them persist as well, when given to heroes and not items.

 

[sangir]

you pretty much cant do that unless u use triggers to make the spell wholely trigger made

although im still looking into this

 

[Dalaran_Guard]

You could import a plain black square, use it as the icon, and delete all the tooltips. This would eliminate everything but a tiny empty text box that appears when you have the cursor over the icon.

 

[PurplePoot]

You can also (if it's a passive) add it to a Spellbook-type spell, make the hero able to learn the spellbook, and disable usage of the spellbook for all players that could possibly get it. The passive ability will still work.