npc/instances/EndlessTower.txt
OnMyMobDead:
donpcevent instance_npcname("Lost Soul#102")+"::OnEnable";
// add these...
getpartymember getcharid(1),2;
for( .@i = 0; .@i < $@partymembercount; .@i++ ){
getitem 512,10,$@partymemberaid[.@i];
getitem 512,20,$@partymemberaid[.@i];
getitem 512,30,$@partymemberaid[.@i];
}
end;
add above code to the script, then they will get the prize once they kill the Naght Seiger.