Stigma Stones

Before being able to use Stigma Stones, each individual must complete a Campaign quest that leads them to the appropriate Stigma Master for their faction at level 20. Once completed, the quest will award the first Stigma Stone available as well as a number of Stigma Shards (80 shards). These shards are used as payment to the Stigma Master in order for a Daeva to socket a Stimga Stone.

As mentioned, the first Stigma Stone you receive will be from either of the faction Campaign quests available to you at level 20. However, more Stigma Stones can be found as random loot from defeated opponents.

Once you complete the level 20 Campaign quest for your faction that leads to your first Stigma Stone you will also open up two slots to equip them in. After that a new slot will be available every 10 levels. (I.E.: 2 slots at level 20, 3 slots at 30, 4 slots at 40, etc.)

Stigma Shard cost is four times the level of the stone. (I.E.: for a level 20 stone you will need 80 shards. For a level 30 stone you will need 120 shards.)

The following quest chains will be need at level 20, and completed before you will be able to equip and use the stones.

Elyos
Memory of the Past

Asmodian
No Escaping Destiny

The Stigma Masters can be found accordingly.

Elysean Stigma Master
Orphe - Sanctum

Asmodian Stigma Master
Aud - Pandaemonium

At level 20, the following stones will become available. (Note: At level 20 you will be able to have two stones. That means if you are a Gladiator you would NOT want one to be the Gladiators "Improved Stamina" stone. Rather you would like something along the lines of the Spirit Master and Templar stones.)

Here are the "class", "Ability", and "Ability Action" for each stone type.

Templar
Indignation
Increases your Physical attack power by 30% for 30Sec.

Gladiator
Improved Stamina
Recovers your HP by 20% and increases your Max HP by 20%, shield defense by 150, and Weapon Defense by 100 for 2Min.

Assassin
Chain Engrave Signet
Inflicts 34~38 physical damage on the target and engraves a signet pattern on the target up to the level of 3.

Ranger
Arrow Deluge
Inflicts 122~126 physical damage on a target within a 15m radius of you and other enemies within a 5m radius of the target.

Sorcerer
Lumiel’s Wisdom
For 15 sec, you can use a skill with only 50% of MP that is needed to use the skill.

Spiritmaster
Vitality Absorption
Inflicts 279 magical fire damage on a target within a 25m radius of you, and absorbs 50% of the damage as HP.

Cleric
Grace of Empyrean Lord
For 12 sec, you can use a skill without consuming the MP that is needed to use the skill.

Chanter
Rage Spell
For 30Min, your Physical attack power increases by 15%. But in the meantime your healing skill casting time also doubles.

Something to keep in mind. Notice how the Sorcerer and Cleric ability are almost the same! However, the Cleric ability is 3 seconds SHORTER but cost 0% mana versus 50% less mana.

Be sure to use the stones that actually apply to your class! In other words, there is really no point is using the Templar stone for a Chanter. Unless you feel like standing there and trying to do more damage with your weapon than a Gladiator or Assassin