Hi Prototype_6492,
In your enemy, make an event (call it something like "PlayerTriggers"), and check box it global.
When player hits trigger, use the Send Event action.
In Send Event the target object should be the Game Object / your enemy, and then you should see your global "PlayTriggers" event.
*Or* the Event Target could be Broadcast All, and this will send the event to everyone who has the global "PlayerTriggers" event.