4* Sparky
So I am at the point where I can complete most of the content that I am currently attempting with the roster that I have, which includes 5* Hype and Blade both R4. That being said I don’t really need Sparky but I do like using him as a 3* so I was wondering if people thought he was worth maxing or should I save my t4 tech and hope I get a good tech 5* soon so I don’t use the cats on sparky when I don’t really need to. Thoughts?
Side question: How helpful would a max 4* unduped sparky really be in helping me explore act 5?