Hero Select Question.

This maybe a nub question but i need serious help with it.
In my map, in the beginning you select your hero, but when the player goes in the circle of power, he dies and the hero is not created. Heres my triggers, please comment and tell me where the mistake is!

EVENT
-Unit Enters Region ArcherSelect <Gen>
CONDITION
-None
ACTION
-Create 1 Archer(Custom Hero Archer) In Center Of (DefenderSpawn) <Gen> facing default building degree
-Kill Triggering Unit(The guy who enters the circle of power is supposed to die but the hero should be made after.)
-Trigger Turn Off This Trigger.

The hero selector unit is a peasant and the region for ArcherSelect is infront of the archer in the middle of a Circle Of Power. I want it so that when the Peasant enters the circle of power, he selects that hero. Thanks again

Unit Enters region

Create one Archer at blah blah
Kill Entering Unit