Suggestions like beginning after the end and black haze? School magic type where mc is pow...

http://www.mangago.zone/read-manga/the_great_mage_returns_after_4000_years/
http://www.mangago.zone/read-manga/solo_spell_caster/
http://www.mangago.zone/read-manga/a_returner_s_magic_should_be_special/

Maybe?

Soul land IV- The ultimate combat
Unordinary
the great mage returns after 4000 years
Martial peak
Eleceed
The golden haired wizard
A returner's magic should be special
Super outcast