With the game imo in its worst spot it's ever been, I believe this would be a good change and would bring back players to the game. I know there are several other changes needed to be made as well but this change should happen as the current system doesn't reward the players who put time into the game.
I believe that rerolling should be brought back into the game but not as it used to be. Instead of costing weapon parts and motes, it should cost 15 legendary marks. This would be a good price because it would give people more of a motive to doing daily and weekly activities as well as people would grind for that perfect roll. I believe this would be a good addition as well because this would promote more primary play because people would feel stronger with their God rolled primary.
Anyways, something needs to change and soon. This most recent patch brought a new meta but also brought with it alot more problems. From now on we as a community need to start asking for buffs and any mention of a nerf should be ignored. Rerolling would be a good thing to bring back. I guarantee that the majority will be for it.
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If they bring it back they could limit it to one re-roll per week. Honestly more than that would be too much.