Who should i rank up

HellaFire

I was planning on r3 my 5* sabertooth but i happened to get myself a 4* sunspot and now i cant decide to r3 sabertooth or r5 sunspot

PantherusNZ

Ooh that's tough. If they were the same tier I'd say Sunspot in a heartbeat, but a good 5* should generally be a priority over anything but a vastly superior 4*.

My vote would be Sabretooth but I wouldn't hold it against you to go for sunspot instead.

Suman_sahA

at ur lvl, 4* has many use. so u can upgrade sunspot, then u collect rankup material for sabre