Stamps can be earned with battle exp once you get enough you can get one of
these perks
+1 Earth resistance
+ 1 Dark resistance
+1 Ice resistance
+1 Water resistance
+1 Dex (catch radius and auto bow load speed)
+1 Strength (gives hitpoints)
+1 Agility (player movement speed)
+1 Stamina ( hitpoints and regen)
+1 Fire resistance
