Can someone help me stop wolves from teaming up once aggravated

Goblin:
Type: Wolf
Display: '&cGoblin &6[&c<mob.thp>&6]'
Health: 8
Damage: 1
Drops:
- GoblinDrops
LevelModifiers:
- health 5
- damage 0.5
Options:
Disguise: babyzombievillager
MovementSpeed: 0.1
PreventOtherDrops: true

This is my mob, it works fine, I just can't get the wolves to not team up. I want to be able to fight them individually just like runescape.