Updated 2 Oct 2026
Abilities/Bastion Field

Bastion Field fills your Special slot. Guard special ability of the spirit school. Cast 10 ticks, cooldown 170 ticks. Wards 3 ally/allies for 25 in radius 5.

You get it by equipping 16 bases across 6 lines: Horizon Kite Shield, Lantern Kite Shield, Rainshadow Kite Shield, Rimeward Kite Shield and Warden's Kite Shield and 1 more.

The draft can bend it 6 ways — Echo, Reach, Multiplicity, Area, Duration and Critical — and cards that ask for guard, ward and support will find it.

Between rooms it can be offered 142 cards: 33 written for it specifically, plus the 109 that any ability can take. Those cards can put Brand, Burn and Chill on it, and attune it to Holy, Fire and Frost.

4 Uniques are built on gear that hands it to you: The Wyrm's Eyelid, The Whole Horizon, The Pocket Winter and The Night Shift.

Gear that hands it to you

6 lines · 16 bases

How the draft bends it

6 ways to change it
ChangeWhat it does to a guard
Echo
The whole cast plays once more after a short gap, at reduced effect.
+100% Repeats
-25% WardAmount
-25% Damage
Reach
The ability reaches farther.
+15% Radius
Multiplicity
More projectiles, targets or summons at reduced individual effect.
+1 HealTargets
-10% WardAmount
Area
Wider bursts, arcs and impact zones.
+12% Radius
Duration
Statuses, buffs, summons and channels last longer.
+20% BuffTicks
Critical
The ability crits more often; heals and wards grow instead.
+5% WardAmount

The fine print

the raw numbers behind it
Damage tags
Fires onwindup → release → barrier
Radius5
RangeUnits5
WardAmount25
HealTargets3
BuffTicks260
ArmorPercent0
FieldArmorPercent30
FieldArmorFloor25
FieldSlowFraction0.3
FieldHealingReceived20
ChargeUnits0
ChargeRadius0
Knockback0

Cards it can be offered

142 cards it can see
Written for this ability (33)
Plus the ones any ability can take (109)

Nothing on these cards narrows the draft, so every ability can be offered them — see all 142 together →

What it can end up carrying

if the draft goes your way
StatusesBrand, Burn, Chill
AffinitiesHolyFireFrost

Uniques

built on gear that grants it