Scion might be one of the best looking Epics in all of Teleria but his kit is otherwise underwhelming. Whilst he deals solid damage he didn’t bring any essential aspects to the encounters you will face in Raid Shadow Legends.
Everyone will be able to earn themselves Scion for Free as he replaces Cleopterix as the Fragment Champion in the Daily Login rewards. It will take 2 months for you to collect all the fragments.
His A1 has a helpful but low chance to place Block Active Skills whilst his A2 will place block buffs and heal reduction. Unfortunately he doesn’t really place enough hits to enter into a Fire Knight (with him being all single hit abilities) team. His AoE is a strong attack however he loses the benefits of his buffs. Ideally this would cleanse, buff then attack but you will need to bring another Increase Attack champion as he will place those buffs AFTER he has attacked.
I wouldn’t rush to build this champion after playing the game for over 12 months however he appears to be still accessible from shards so far an early game account he may bring some debuffs that your account does not have.