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And while I haven't gotten this far with a character yet I believe you can get another 5 end (for a total of 110) with the Portal Jockey accolade. It also increases you max hp by 5.
Doomguide
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All of the HP and End increasing accolades not only increase your max, but your regen and recovery rates are based off of your max. So getting the Atlas medalion increases your endurance to 105, and increases your endurance regen rate by 5%, which is even greater improved if you have Stamina and Quick recovery.
Same is true for HP and HP regen powers such as Health from the stamina pool and FH, IH, and Integration from the regen scrapper pool.