5* R2 Nebula to R3 or 4* R4 Stark Spiderman to R5?
I'm debating on who to rank up. Nebula is unawakened, Spiderman is awakened. I really like Nebula's utility but we all know Stark is one of the best champions in the game. However, 4*'s are losing value and I'm a bit discouraged to bring him to 5/50.