<attribute key="duration" value="480"/> - the amount of time a ring of healing lasts, if you remove this line it will last forever
<attribute key="healthGain" value="1"/> -The amount of hp the player gets
<attribute key="healthTicks" value="1000"/> -every 1 sec? 2 sec? 1000= 1 sec , 2000 = 2 sec
<attribute key="manaGain" value="4"/> -- same as health but for mana
<attribute key="manaTicks" value="1000"/> same!