[Merlin]

if you make a system npc
like
timeout=.5;
if (timeout&&#s(server.warp)==#a) {
setlevel2 blah.graal;}

and the npcw

if (weaponfired&&!on) {
set on;
setplayerprop #c,Off.;
}
else
if (weaponfired&&on) {set off;
setplayerprop #c,On;
}

if (on) {
if (playerchats&&strequals(#c, ) {setstring server.warp,#c;
setplayerprop #c,Warped;
unset on;
}
not sure about the system npc part (first part)