Tier Questions

[Aoen]

In games where you can type "-random" to obtain a random unit instead of picking one from a tier, how do you activate the cooldown of the unit with the same type in the tier to make sure that two players don't have the same unit. Basically what I'm asking is how do you use a trigger to buy a specific unit from a specific tier.

 

[Aoen]

Nvm found the trigger - Neutral Building - Remove Unit