Other methods of obtaining charms include stealing them from chests in Dorgesh-Kaan (at Thieving level 52), from a random event gift, or from Soul Wars using zeal points
Took me 5 minutes of searching, I suggest you bookmark http://runescape.wikia.com/wiki/RuneScape_Wiki
yea just SW the points and aim all the points for charms , thats the only way i think there is for summon pure .

