What kind of mod that makes monsters stronger (Minecraft)?

I'm Justin and have my own Nitrado server (For Minecraft)

I play with my friends with mods and have around 60-70 mods inside.

My proplem is: That some mod that makes the monsters get stronger day by day ne spider has simple effects and 50 lives… O_o

So I ask you which mod it could be?

Thanks in advance

Link to the mods: https://mega.nz/folder/M8gQWKyY#1bAjeUsQZ2Vh4oB6ERoPig

Version (1.12.2) Forge

Has done, she found random ones in the server config.

Nevertheless, thanks for those who took the time to search!