Skills:
  - potion{type=SLOW;duration=40;lvl=10} @MIR{r=10;t=EndWalker}
  - skill{s=MirageSpawnEffectTrigger}
  - delay 30
  - sound{s=entity.evoker_fangs.attack;v=3;sc=hostile} @self
  - summon{type=EndWalkerMirage;amount=1;radius=0;os=true} @self