that reminds me off runescape d3m0nd0 and it works well on there.
ON that its if you hit them your skulled and if you die you lose everything.
IF they hit you and your not skulled and you die you keep 3 items.
Also if your in lvl 1 wild attack someone and run back out theres a 10 second timer till they can stop attacking you so it stops annoying noobs which is good.