Orcs – discussion about the race.

2Archlich

What is the name of this spell?

Subjugation.

And so that you are understood, explain the meaning of the word "mass debuffs".

Mass - massive. Buff - a positive spell, => debuff - a negative spell. Mass debuff - a massive negative spell. This is in the topic about gaming slang:)
2Leolopus
You are right, but in some cases one race has an advantage, and in others, another.