OJSP said: Any options would involve gathering a lot of iso. But purely from the rarity of covers, I'd go for 2,1,then 3.
Jarvind said: You can guarantee that you won't pull any extra 5* covers by just not pulling LTs, which lets you get option 1 and/or 3 out of the way first. Personally I'd rechamp the 3*s first. The covers come relatively often and they're a great source of goods once they get to 230 or so.
aesthetocyst said: What? Sell max champs? Yep. They've paid out all their rewards. Having a base level 2 vs a lvl 144 makes little difference. Eventually, you'll get to a point where even the level of most 3s matters little.