I'm wondering what the point of upgrading to 5* weapons is(not all of them, but most of them.) A level 10 4* weapon tends to do significantly more damage than a level 1 5* weapon and because radiants are extremely rare and you practically have to buy them so you almost can't level up, what's the point of upgrading to 5* at all? If you stay at a level 10 4* weapon you'll dish out more damage than if you decide to upgrade to 5*(and probably get stuck at lower levels that still deal less damage.) I know that there a certain weapons that upgrading to 5* make up for it in some sort of way, whether it would be upgrading the charged attack(like how Divine Avenger shoots 3 beams towards where avenger only shoots 1.) So should we just stay at level 10 4* weapons or upgrade to 5* for some reason?
tl;dr 4* level 10 deals more damge than 5* (until about level 8+ or so which is hard to get because radiants are very rare.) What's the point of upgrading unless there's a bonus to the 5* that the 4* didn't have? (Divine Avenger's 3 beam charged attack to Avengers 1 beam charged attack.)
There isn't a point to upgrading, and you're going to be 4* until you are able to farm shadow lairs/buy your way there.