Does this one work also? In order to keep my game speed from falling, I tried to squish as much of this together as possible. It used to be that there was an individual event for every player, that being a unit gains a level. Then there was an action for every player, that being set tech level of HeroSlay to 1. What it does (although self-explanitory pretty much) is when a unit gains a level and the level is greater then 10, all players gain the Hero Slay ability. I worry most about the Player group action. Is that made correctly, so that all players gain the tech?
HeroCrit
Events
Unit - A unit Gains a level
Conditions
(Hero level of (Triggering unit)) Greater than 10
Actions
Player Group - Pick every player in (All players) and do (Player - Set the current research level of Hero Slay to 1 for (Picked player))
Game - Display to (All players) the text: A player's hero has...
Trigger - Turn off (This trigger)