You can enchant your Guardian Ring of King with Crafted Stone (25235) . Equip your Ring and talk to the Suspicious Man at (gef_tower 36, 177).

Enchanting:

1. Enchanting costs 10x Crafted Stone (25235) and 100.000 zeny for a single enchant.
2. You can enchant the ring twice.
3. You can choose between three categories (Meele, Magic or Ranged).
4. Enchanting has no chance to fail.

Resetting:

1. Reseting enchant cost 10x Crafted Stone (25235) and 100.000 zeny.
2. 80% success chance, in case of failure, the accessory with cards compounded on it is destroyed.
3. You can reset only rings with two enchants on it.

Royal Guardian Ring [1] (28483) Enchants
Meele		Magic		Ranged
3rd slot	4th slot	3rd slot	4th slot	3rd slot	4th slot
Fighting Spirit Lv3 (4809) Fighting Spirit Lv4 (4808) Fighting Spirit Lv5 (4820) Fighting Spirit Lv6 (4821) Fighting Spirit Lv7 (4822) Sharp Lv1 (4818) Sharp Lv2 (4817) Sharp Lv3 (4816) Sharp Lv4 (4843) Sharp Lv5 (4844) ATK+1% (4819) ATK+2% (4766) ATK+3% (4767) ASPD+1 (4807) ASPD+2 (4842)	STR+3 (4702) STR+4 (4703) STR+5 (4704) STR+6 (4705) STR+7 (4706) AGI+3 (4732) AGI+4 (4733) AGI+5 (4734) AGI+6 (4735) AGI+7 (4736) VIT+3 (4742) VIT+4 (4743) VIT+5 (4744) VIT+6 (4745) VIT+7 (4746)	Spell Lv3 (4813) Spell Lv4 (4812) Spell Lv5 (4826) Spell Lv6 (4827) Spell Lv7 (4828) MaxSP+1% (4929) Archbishop Lv1 (4805) Archbishop Lv2 (4850) Archbishop Lv3 (4851) Archbishop Lv4 (4852) MATK+1% (4883) MATK+2% (4896) MATK+3% (4897) MATK Lv1 (4760) MATK Lv2 (4761)	INT+3 (4712) INT+4 (4713) INT+5 (4714) INT+6 (4715) INT+7 (4716) DEX+3 (4722) DEX+4 (4723) DEX+5 (4724) DEX+6 (4725) DEX+7 (4726) VIT+3 (4742) VIT+4 (4743) VIT+5 (4744) VIT+6 (4745) VIT+7 (4746)	Fatal (29047) Fatal Lv1 (4863) Fatal Lv2 (4864) Fatal Lv3 (4865) Fatal Lv4 (4866) Sharp Lv1 (4818) Sharp Lv2 (4817) Sharp Lv3 (4816) Sharp Lv4 (4843) Sharp Lv5 (4844) Expert Archer Lv1 (4832) Expert Archer Lv2 (4833) Expert Archer Lv3 (4834) ASPD+1 (4807) ASPD+2 (4842)	AGI+3 (4732) AGI+4 (4733) AGI+5 (4734) AGI+6 (4735) AGI+7 (4736) DEX+3 (4722) DEX+4 (4723) DEX+5 (4724) DEX+6 (4725) DEX+7 (4726) LUK+3 (4752) LUK+4 (4753) LUK+5 (4754) LUK+6 (4755) LUK+7 (4756)