Rank Up or Wait?
![Bonesjunior](https://us.v-cdn.net/6029252/uploads/avatarstock/nHYSF3CEWPIFP.png)
Y'all so graciously helped me decide to make corvus my first 5* r4 a few weeks ago when I made a post. Well Kabam isn't being friendly and I'm not getting any t4 cosmic shards or cats lately. I need 10k more to be able to r4 corvus. My question is should I go ahead and take my gwenpool up to r3 while I wait? Or one of my mystics? I have a ton of 5k ISO for both classes. Or should I just be patient and wait for this last cat since r4 will take close to a million gold? I have 0 cosmic ISO right now and only a little generic. Thanks in advance! ![yir0u19gx3vz.jpg](https://us.v-cdn.net/6029252/uploads/editor/p5/yir0u19gx3vz.jpg)
![yir0u19gx3vz.jpg](https://us.v-cdn.net/6029252/uploads/editor/p5/yir0u19gx3vz.jpg)
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I guess I'm just worried about letting all that class ISO go to waste. Guess I could use the skill on corvus since I don't have any cosmic ISO and very little generic.