Health Bar MOBS
This mod allows you to have, in real time, the remaining life of a mob or a player. Especially in PVP, it can be practical... Well, that's pretty useful though! It's for 1.18 but if it doesn't work, you need 1.18.2.
0 lag guarantee!
(Finally, it is above all that it can even be installed on the old computer in the attic...)