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Theostones
October 7, 2026 at 12:52 AM
Added an official interface screenshot
Theostones (신석) are the proc stones of AION 2. Every weapon and Guard has one Theostone slot, and imprinting a Theostone gives the item a chance on each attack to trigger a combat effect: a status effect, damage over time, or a burst of elemental damage. The name Theostone is the global client's own item name; NCsoft's Korean guidebook and patch notes call them 신석. Effects and odds below come from the Korean service's official item database and probability tables, checked on October 7, 2026.
A Theostone is consumed when it is imprinted into an item's Theostone slot from the Integrated Enhancement menu. The imprinted effect can be removed again from the same window.
Higher grades give stronger versions of the same effect types. There are three grades: Rare, Epic and Unique.
The effects of the same Theostone do not stack; only one copy applies.
Theostones mostly come from monsters and special content, according to the official guidebook.
Owned Theostones carry over when a character transfers servers (patch notes of July 22 and August 26, 2026).
Since February 11, 2026, Theostone procs use the status effect accuracy and resistance stats; since January 14, 2026, status effects from Theostones other than Paralyze and Stun can be cured with healing potions, and they end when the character dies.
Four Theostones can be synthesized into one new random Theostone. The grade of the materials decides the odds, which NCsoft publishes on its probability page:
Material grade | Result | Chance |
|---|---|---|
Rare | Epic | 11.12% |
Rare | Rare | 88.88% |
Epic | Unique | 9.1% |
Epic | Epic | 90.9% |
Unique | Unique | 100% |
Within a grade, the damage Theostones are the most common results and the hard crowd control ones (Stun, Paralyze, Blind) the rarest. For a Unique synthesis, for example, each single-target elemental Theostone has a 9.92% chance and Theostone: Fregion's Schemes a 2.48% chance.
Theostone (global client name) | Korean name | Effect | Cooldown |
|---|---|---|---|
Theostone: Fregion's Schemes | 프레기온의 술책 | 3% chance on attack to inflict Blind for 7 seconds | 5 s |
Theostone: Beritra's Conspiracy | 브리트라의 음모 | 3% chance on attack to inflict Seal for 5 seconds | 5 s |
Theostone: Nezekan's March | 네자칸의 진군 | 2% chance on attack to inflict Root for 5 seconds | 5 s |
Theostone: Meslamtaeda's Greed | 메스람타에다의 욕심 | 3% chance on attack to inflict Stun for 3 seconds | 5 s |
Theostone: Ereshkigal's Honor | 에레슈키갈의 명예 | 2% chance on attack to inflict Paralyze for 4 seconds | 5 s |
Theostone: Kaisinel's Reverie | 카이시넬의 환상 | 3% chance on attack to cut movement speed by 50% for 7 seconds | 5 s |
Theostone: Lumiel's Interference | 루미엘의 참견 | 3% chance on attack to cut combat speed by 50% for 7 seconds | 5 s |
Theostone: Zikel's Arrogance | 지켈의 오만 | 5% chance on attack to poison for 600 damage every 2 seconds over 20 seconds | 1 s |
Theostone: Fregion's Strategy | 프레기온의 책략 | 3% chance on attack to cause bleeding for 800 damage every 2 seconds over 10 seconds | 1 s |
Theostone: Tiamat's Rage | 티아마트의 격분 | 1% chance on attack to deal 15,000 fire damage to one target | 1 s |
Theostone: Triniel's Rationality | 트리니엘의 이성 | 2% chance on attack to deal 7,500 water damage to one target | 1 s |
Theostone: Vaizel's Oath | 바이젤의 맹세 | 5% chance on attack to deal 3,000 earth damage to one target | 1 s |
Theostone: Meslamtaeda's Regret | 메스람타에다의 후회 | 10% chance on attack to deal 1,500 wind damage to one target | 1 s |
Theostone: Tiamat's Counterstrike | 티아마트의 반격 | 2% chance on attack to deal 3,750 fire damage to up to 4 targets | 1 s |
Theostone: Marchutan's Justice | 마르쿠탄의 공정 | 4% chance on attack to deal 1,875 water damage to up to 4 targets | 1 s |
Theostone: Yustiel's Compassion | 유스티엘의 온정 | 10% chance on attack to deal 750 earth damage to up to 4 targets | 1 s |
Theostone: Beritra's Selfishness | 브리트라의 이기심 | 20% chance on attack to deal 375 wind damage to up to 4 targets | 1 s |
Theostone (global client name) | Korean name | Effect | Cooldown |
|---|---|---|---|
Theostone: Bollvig's Tragedy | 라스베르그의 비극 | 3% chance on attack to inflict Blind for 6 seconds | 5 s |
Theostone: Khrudgelmir's Silence | 스루드겔미르의 암묵 | 3% chance on attack to inflict Seal for 4 seconds | 5 s |
Theostone: Charna's Root | 헤카테의 속박 | 2% chance on attack to inflict Root for 4 seconds | 5 s |
Theostone: Fasimedes's Dignity | 파시메데스의 위엄 | 3% chance on attack to inflict Stun for 2 seconds | 5 s |
Theostone: Vidar's Dignity | 비다르의 존엄 | 2% chance on attack to inflict Paralyze for 3 seconds | 5 s |
Theostone: Deltras's Loyalty | 델트라스의 충성 | 3% chance on attack to cut movement speed by 50% for 6 seconds | 5 s |
Theostone: Io's Sadness | 이오의 슬픔 | 3% chance on attack to cut combat speed by 50% for 6 seconds | 5 s |
Theostone: Orissan's Blood | 오릿사의 피 | 5% chance on attack to poison for 450 damage every 2 seconds over 20 seconds | 1 s |
Theostone: Mahisha's Wrath | 마히샤의 분노 | 3% chance on attack to cause bleeding for 600 damage every 2 seconds over 10 seconds | 1 s |
Theostone: Traufnir's Courage | 트라우프니르의 용기 | 1% chance on attack to deal 10,000 fire damage to one target | 1 s |
Theostone: Sif's Knowledge | 시프의 지식 | 2% chance on attack to deal 5,000 water damage to one target | 1 s |
Theostone: Freyr's Wisdom | 프레이르의 지혜 | 5% chance on attack to deal 2,000 earth damage to one target | 1 s |
Theostone: Sigyn's Brilliance | 시긴의 영특 | 10% chance on attack to deal 1,000 wind damage to one target | 1 s |
Theostone: Boreas's Encouragement | 보레아스의 격려 | 2% chance on attack to deal 2,500 fire damage to up to 4 targets | 1 s |
Theostone: Charna's Acumen | 헤카테의 총명 | 4% chance on attack to deal 1,250 water damage to up to 4 targets | 1 s |
Theostone: Thrasymedes's Wisdom | 트라시메데스의 현명 | 10% chance on attack to deal 500 earth damage to up to 4 targets | 1 s |
Theostone: Jumentis's Dexterity | 유벤투스의 민첩 | 20% chance on attack to deal 250 wind damage to up to 4 targets | 1 s |
Theostone (global client name) | Korean name | Effect | Cooldown |
|---|---|---|---|
Theostone: Kaisinel's Vestige | 카이시넬의 편린 | 3% chance on attack to inflict Blind for 5 seconds | 5 s |
Theostone: Perion's Tragedy | 페리온의 비극 | 3% chance on attack to inflict Seal for 3 seconds | 5 s |
Theostone: Heladrir's Chains | 힐라드르의 사슬 | 2% chance on attack to inflict Root for 3 seconds | 5 s |
Theostone: Aulak's Roar | 울라크의 포효 | 3% chance on attack to inflict Stun for 1 second | 5 s |
Theostone: Nua's Scheme | 누아의 흉계 | 2% chance on attack to inflict Paralyze for 2 seconds | 5 s |
Theostone: Reda's Tenacity | 레다의 집요함 | 3% chance on attack to cut movement speed by 50% for 5 seconds | 5 s |
Theostone: Notun's Craft | 노툰의 기교 | 3% chance on attack to cut combat speed by 50% for 5 seconds | 5 s |
Theostone: Santras's Secret | 산트라스의 비밀 | 5% chance on attack to poison for 300 damage every 2 seconds over 20 seconds | 1 s |
Theostone: Feruk's Instinct | 페르크의 본능 | 3% chance on attack to cause bleeding for 400 damage every 2 seconds over 10 seconds | 1 s |
Theostone: Zikel's Vestige | 지켈의 편린 | 1% chance on attack to deal 5,000 fire damage to one target | 1 s |
Theostone: Tassin's Command | 타신의 명령 | 2% chance on attack to deal 2,500 water damage to one target | 1 s |
Theostone: Ulgorn's Will | 울고른의 의지 | 5% chance on attack to deal 1,000 earth damage to one target | 1 s |
Theostone: Aultross's Promise | 아울트로스의 약속 | 10% chance on attack to deal 500 wind damage to one target | 1 s |
Theostone: Bargott's Ember | 바고트의 불씨 | 2% chance on attack to deal 1,250 fire damage to up to 4 targets | 1 s |
Theostone: Aulvicar's Sorcery | 아울라프리의 주술 | 4% chance on attack to deal 625 water damage to up to 4 targets | 1 s |
Theostone: Gartua's Strength | 가르투아의 힘 | 10% chance on attack to deal 250 earth damage to up to 4 targets | 1 s |
Theostone: Rathman's Greed | 라트만의 욕심 | 20% chance on attack to deal 125 wind damage to up to 4 targets | 5 s |
Date (Korean service) | Change |
|---|---|
December 3, 2025 | Theostones given as quest rewards made untradeable |
December 17, 2025 | Fixed Blind Theostones affecting bosses |
January 14, 2026 | Cooldown of the 21 status effect Theostones (seven per grade, including the slows) raised from 5 to 15 seconds; their effects end on death; healing potions can cure them except Paralyze and Stun |
February 4, 2026 | Status effect durations shortened, for example Fregion's Schemes from 12 to 7 seconds and Beritra's Conspiracy and Nezekan's March from 9 to 5 seconds |
February 11, 2026 | Status effect accuracy and resistance now apply to Theostone procs |
April 22, 2026 | Damage of the elemental Theostones greatly increased |
June 10, 2026 | Theostone status effects no longer stack with the same effect applied by a character |
August 26, 2026 | An internal cooldown was added to proc checks, and the crowd control Theostones went from a 15 second to a 5 second cooldown |
Every Theostone on this page exists in the global client's item data under the English name shown, but as of October 7, 2026 NCsoft had not published global drop sources or a global probability page. The effect values are the Korean service's current ones.
Manastones and Soulstones · Weapons · Guard · Enhancement and Breakthrough · Status Effects
