Help please!

I have 2 questions,
1) How do i make it so that a ceratin hero (lets say Paladin) cannot hold a item (lets say boots of speed)??? Cause im making a map where a restriction of item uses for certain heroes apply.

2) I made my own death aura thingy using life regeneration aura (fountain of life) and just chnage the value, it works but they have to get attacked first (anyway to fix this?) and the icon for spell is in the hero ability selection but when its chosen you dont see the icon in the bar but the aura is there... do you know how to make it to show the icon and to change the attack before aura comes in effect?

Please, please answer these two questions, they are the only 2 problems stopping me from the completion of my map! Thank you for taking time to read this

1) your trigg
Events
Unit - A unit Acquires an item
Conditions
(Item-type of (Item being manipulated)) Equal to Boots of Speed
Actions
If (All Conditions are True) then do (Then Actions) else do (Else Actions)
If - Conditions
(Unit-type of (Hero manipulating item)) Equal to Paladin
Then - Actions
Hero - Drop (Item being manipulated) from (Hero manipulating item)
Else - Actions
Do nothing

2) Use a Disease Cloud Base spell (abomb's). That will give you the icon and will deal damage even if the unit has full life, but it can not kill units though.

good job and thanks a lot I owe

1_ it's not recommendable to do like qmrcool said. create just one trigger for each hero:

event - hero acquires an item
condition - item being manipulated = (item he can't carry)
condition - item being manipulated = (another item he can't carry)
condition - item being manipulated = (another item he can't carry)
action - drop/remove item being manipulated

try to avoid too much process in your triggers!

the death aura it's good idea! i liked your idea.
do it just as qmrcool said, and add a simple trigger:

-event - a unit life becames less o equal to 1

-condition - [triggering unit is a hero] = false
-condition - [player[owner of triggering unit]] is a computer = true (or something like that)

-actions - kill triggering unit

good luck

For the death aura i would not suggest using the way unknown suggested because then, no one gets the gold or experience for killing the unit. In my opinion you shouldnt let this aura kill units for balance sake