ONE REALLY IMPORTANT THING I HAVEN'T SEEN ANYONE MENTION

rattle-and-burn:

In BotFA during the Dol Guldur sequence, there is maybe 1-2 minutes of brightly flashing, pulsating light. 

If you have epilepsy or similar conditions that can be triggered by visual stimuli, you might want to look down. Just saying. It messed me up a little.