LogFAQs > #958291384

LotR is absolutely worth doing, at least unless you're a vet, and can give 7*s. I've been super lucky on it this time, and pulled 6 different 7*s accross the first 14 banners.

You can look at banner details, and most realms seem to be around 1.5% - 2% chance for a 7*.
Considering there's a garanteed 5*+ relic, which is 14% of the pool, your odds to get a 7* relic on LotR is around 1.5/14 - 2/14 = 10% - 14% (actually slightly higher because you can get more than 1 5*+ relic)

Accross the 18 banners, that should get you, on average, 2 7* relics for 90 mythril