Fixes being unable to pickup the armblade nullrod on mining (#16189)

code/game/objects/items/weapons/holy_weapons.dm

@@ -366,6 +366,15 @@
 	w_class = WEIGHT_CLASS_HUGE
 	sharp = TRUE
 
+/obj/item/nullrod/armblade/mining
+	flags = NODROP
+	reskin_selectable = FALSE //So 2 of the same nullrod doesnt show up.
+
+/obj/item/nullrod/armblade/mining/pickup(mob/living/user)
+	..()
+	flags += ABSTRACT
+	return FALSE
+
 /obj/item/nullrod/carp
 	name = "carp-sie plushie"
 	desc = "An adorable stuffed toy that resembles the god of all carp. The teeth look pretty sharp. Activate it to recieve the blessing of Carp-Sie."

code/modules/mining/lavaland/necropolis_chests.dm

@@ -48,7 +48,7 @@
 		if(14)
 			new /obj/item/nullrod/scythe/talking(src)
 		if(15)
-			new /obj/item/nullrod/armblade(src)
+			new /obj/item/nullrod/armblade/mining(src)
 		if(16)
 			new /obj/item/guardiancreator(src)
 		if(17)