OMG GUYS I FIGURED OUT THE SPAWN COMMAND!!!: ITS THIS

Hydra_Character_BP_Boss_Easy_C

Hydra_Character_BP_Boss_Medium_C

Hydra_Character_BP_Hard_C

If those don't work try these because I forgot which ones:

Hydra_Character_BP_Boss_Gamma_C

Hydra_Character_BP_Boss_Beta_C

Hydra_Character_BP_Boss_Alpha_C

Other:

Hydra_Character_BP_Boss_C