This doesn't actually hold up. Epic 3* girls have a base stat total of around 18, as compared to a modern 5* Legendary at 25. Even with a maximum +40% Week of the Epic blessing, that 3* epic is only roughly at parity with that unblessed 5* legendary. If you need a +40% week of the epic just to be equal to a legendary (not even a mythic!) then it's just not worth consideration at all. The most useful benchmark for determining whether a girl is worthwhile as a battle candidate is how much of