I have one weird suggestion.
Let the talt TRADEABLE and only can sell for 1 silver
It only can be obtained through DUNGEON above 130 level.
Talt can be used in:
a) higher rank advancement
b) obtain specific equipment or recipe
c) can exchange rare material for crafting
c) exchange EXP TOME
Then we have another new currency:TALT
I personally really think that TRADING should be part of MMORPG. Not everyone likes to grind. And lastly people will say TALT is Loves.
