Improvement idea:

[RiverBummer]

Yes it can. Once you get a rune up to Lv10 it just has dashes after the slash but you can still add EXP to it.

Lv10Vengence.jpg

And you guys are killing me when you call the blue runes "cyan." THIS is CYAN. THIS is BLUE.

Sorry. Just my OCD-ness kicking in. lol

Hellion this is GREAT INFO - THANKS! It ratifies my original thinking that any rune at any color level can be made to perform like any other SAME CATEGORY rune independent of scarcity if you beat Tynon's auto combine entrapment logic (where you don't accidentally combine a blue rune into a purple rune by sequestering it away out of the combine tray or buy the VIP special rune bag). All it takes is lots of level green/blue runes (equivalent to coinage) and their energy to feed it all.