Board Thread:The Last Sovereign Discussion/@comment-31763506-20190603183719/@comment-38754466-20190926135702

The ruins being open is: +1 Tower front, +2 Erosian Front, T-Erosia is off, and you don't need 30 Erosian Front as early.

T-Erosia being on can give you +1 Erosian Front from 10 captives and another +2 Erosian Front if you Reinforce Erosia after Tanurak which can more than make up for the 2 Erosian front lost, but that means -3 to the front you'd have reinforced there otherwise.

The lost Erosian front can matter a lot, since you need to have 30 Erosian Front before the Zirantian Palace if you don't have the glove, Which means you probably had to sacrifice some ghenalon or tower front to get there and would like to buff them. The lost Tower front also hurts since I usually have exactly 29 tower front in my ruins open playthroughs.