Map revive

I think having a a limited number of revives for mapping would help some of the problems of the overtly difficult FEELING in maps.
My idea is to have three revives for each player with the number dropping every 5th tier until tier 16+ in which you no longer can revive.
When reviving you are still in the map, and if you are playing solo the content you are CURRENTLY attempting is lost but all remaining content remains and all monsters STILL alive are rerolled, not replenished.