Seriously developers fix him he needs a status effect or be moved to fast speed.
You now have multiple 4* and 5* doing the same damage type as in minor damage to nearby enemies, but with stats lasting 3-6 rounds.
His 440% attack special barely makes a mark on health, due to the fact you gave him the lowest 5* attack stat. There are 3* hero’s with nearly the same attack power.
Hel gets 3 round effect plus extra damage on holy.
Mushashi gets 5 round effect.
Grimm Gormek Tiburtus all 6 round effect.
Richard 6 round effect.
Athena 4 rounds.
Lady Locke does over 2400 damage over 6 rounds.
There is probably more I missed.
Please stop thinking about who to Nerf next and give a hero an upgrade. Its a lot easier to boost one hero then Nerf 10 others. You still have missing holes in 5* specials that you can easily fill with thorne.