Glass Vow
Strike with the mirrored edge of an oath, focusing pressure onto the front line.
Isekai VanguardHeroes · Light
Every oath is a blade pointed inward first.

Base values before level scaling and combat bonuses. Actual battle attributes can differ.
A white-haired oath knight in sun-scratched armor, carrying a mirrored shield that turns terror into discipline.
Kael served in a city where every promise was written into glass and worn over the heart. When the city broke its final treaty and opened the gates to save itself, he stayed outside with the few who still believed an oath meant anything after the ink dried. The summoning took him as the glass on his chest split under a hammer blow. He arrived with the wound shining and the same impossible standard intact.
Game guide
Strike with the mirrored edge of an oath, focusing pressure onto the front line.
Every kept promise hardens the armor over Kael's heart.
A perfect angle turns a killing blow into a flash of harmless light.
Advance in measured steps, never leaving the formation's promise behind.
Flash the shield wide, marking the front rank so every ally's next blows bite deeper.
Below half health, Kael stops yielding ground and lets the shield take the argument.
Enemies already faltering find the oath waiting at their throat.
Draw a radiant boundary across the fight, rallying the party to hold behind it.
Late-wave discipline: while Kael stands, allies take -4% damage per level (caps at -12%).
A capstone for oathbound bruiser builds: judgement lands heavier when the line holds.
The line moves only as fast as the promise can hold.
Send a mirrored shard through the lead target before the shield closes again.
Every minute held under pressure makes the next one cleaner.
A shield flare that burns through a crowded front line.
A lawful victory still knows how to collect.
Split the shield's reflection across the formation — every ally fights behind mirrored glass.
A blocked blow leaves a lesson sharp enough to cut back — attackers take a share of their own hit.
Call the bright court to pass sentence on the packed enemy line — the verdict reaches everyone.
The late bruiser path: judgement that survives long enough to land.
The capstone: the oath holds, and the enemy breaks against it.
Give every living ally a barrier absorbing 2.2× Ka-el's ATK (+12% at rank 2) for 7s. Stronger barriers replace weaker pools; pools do not stack. Cooldown 20s.
With a shield equipped, add 5% block chance per rank (10% at rank 2). A successful block negates one incoming hit.
While Ka-el is alive, other allies take 10% less damage. This does not protect Ka-el; combined guardian auras cap at 30%.
Mark the front foes to take 25% more damage for 6s (+8% duration at rank 2). Deals no damage itself. Cooldown 18s.
Ka-el's first hit on each foe deals 10% more damage per rank (20% at rank 2); later hits do not repeat this bonus.
Deal 18% more damage to foes at 30% HP or less.
Stun the front foe for 3s (+8% duration at rank 2). Deals no damage. Cooldown 19s.
After Ka-el gets a kill, gain 6% attack speed per rank (12% at rank 2) for 4s.
Once per fight, survive a lethal hit at 1 HP and restore 12% max HP. Personal death saves share one trigger; the strongest learned recovery is used.