$npc->Damage($entity_id)?

[Asylum]

I found a solution:

$npc->DoSpecialAttackDamage($h_ent, 400, $h_dmg, $h_dmg, -1);

Have the npc do a special attack, which has as an argument a target (make it $h_ent). I put the skill at 400 so as not to fail, and max and min damage the same as $h_dmg. It works perfectly.

Thank you NatedogEZ for all the help trying to solve this!