The Executed Sage Who Was Reincarnated as a Lich Started an All-Out War - Vol. 5 Ch. 18 - 「The demon lord's right arm」

[MangaDex]

 

[SpecialProjectY]

Magic ore (?) projectiles is definitely an improvement over standard concept, strange in times of peace after defeating the demon lord 10 years prior.

Best waifu Grom was put in check for far too long, time to shine!

 

[H4CK3R]

This chapters episode will be really friggin awesome. Groms entry in the last pages simply 🖤