Evolved fighters have higher stats that match their new tier with signature abilities staying the same as before. Upgrading the skill tree of an evolved fighter still costs the same amount of skill points and coins as their original tier, despite fight requirements recognizing evolved fighters as their new tier. Feel free to discuss which bronze or silver fighters you'd like to evolve! Personally, I want to evolve Big Top Cerebella and Bloody Valentine Eliza because I think their signature abilities are some of the best out of all the existing silver fighters. Big Top Cerebella can survive devastating level 3 blockbusters once per fight because she can revive with up to 50% HP and 6 seconds of unflinching and invincibility. While Bloody Valentine Eliza can instantly get up to 10% health back when either fighter uses a special move and 15% meter for blockbuster when the opponent uses their blockbuster. Resonant Evil Big Band and No Egrets Parasoul are good ones too.