Hi! I supposed you play in an older server than me on account of those high level runes you have. Well, I recently got my SO COOL as F2p Gold Summon KoH by rushing/selling my level 6 summon runes...I say I lost more or less 4k BP. I do say however he really was a necessity for me since I currently use a meta where I need KoH chase. Truly worth and enjoyable. Good luck!