old time some new income this game ...like new rune replace whit better rune then merge rune to better type...maybe rune enugh expensive to made better version so is ok...
there some zodiac pet like same system....normal come ingame then dragon pet after draco ....
nowday like nothing happen 
"peak system cant count on this"
what about an idea just put 5th runeslot as new? ... i am sure is not so hard put ingame and will be good change
