Challenge's Rewards Rework !
Game Over: -1 phy./mag. damage received (pvm & pvp)
5000 EKS: +1 phy./mag. damage to players
Hoarder: +1 bag slot
Token of Gratitude: -2 hours CD on daily quests.
Merlin: +1% success chance with merien/xelimas upgrades.
Old Soul: +1 stat point
Ultimate Tenacity: +5% bag weight
I would suggest Hoarder is a Gold only slot, so people effectively get an extra item slot for convenience, but cannot have a bag with 51 non gold items in it.