AI theory buildGame version 1.0.3350 talent points
Colossal Crossbow: Expansion Device

Crossbow · Final upgrade

Colossal Crossbow: Expansion Device

Piercing frostbite shots reloaded five at a time

Fire piercing frostbite shots while Frost Veil is active. The magazine is fixed at 5 shots, so improve reload speed to fire several magazines during the veil.

AI analysis without using player records or existing builds. Optimal performance in actual play and item availability are not guaranteed.

Use this setup in the game

Copy the code and paste it into the game's preset settings.

Starting weapon Colossal Crossbow · Wizard Bunny · fruit skewer · wishing fountain · 50 talent points

Select the miracle “Snowfield Sentinel” manually in the game. Miracles are not included in the game's preset code. Complete the final weapon evolution and collect the bond items during the run.

After applying, check character and item unlocks and your available talent points.

Weapon effect

Fires Frostbite projectiles that penetrate enemies while Frost Veil is active. / [Magazine Capacity is fixed at 5 rounds]

  1. Colossal CrossbowColossal Crossbow
  2. Colossal Crossbow: Frost VeilColossal Crossbow: Frost Veil
  3. Colossal Crossbow: Expansion DeviceColossal Crossbow: Expansion Device

01 · SETUP

Starting setup

Availability depends on your unlocks

Recommended character

Wizard Bunny

Ice damage amplification +15% strengthens shots during Frost Veil and Ice Bolt. Physical damage amplification -20% lowers weapon damage while the veil is absent, so use spells as well.

Fruit skewer 6 total

  • Iceberry(Glacier)×3
  • Peanut(Sturdy)×2
  • Watermelon(Lake)×1

Wishing fountain Fountain usage 4 of 5

  • Crossbow QuiverCapacity 4
Why this choice
Use Crossbow Quiver to compensate for the short firing cycle of the 5-round magazine. One more item in the same category is needed to activate the Sturdy bond. This uses 4/5 Wishing Fountain capacity and requires the item to be unlocked.

Talents 50 points

  • Willpower10
  • Wrath20
  • Swiftness20
Why this choice
Willpower 10 increases fountain capacity to 5 and provides 25 maximum MP. Wrath 20 increases critical chance, critical damage, and damage against bosses, while providing armor penetration. Swiftness 20 improves attack speed, dash charges and recovery, and dash invincibility time.

Recommended miracle

Snowfield Sentinel

  • Ice damage +9
  • Movement speed +10%
  • Gain 1 Glacier artifact (selected from unlocked, eligible candidates)
Why this choice
Ice damage +9 strengthens Frostbite rounds, while movement speed +10% helps find safe positions during reloads.

Stat priorities

  1. Ice damage
  2. Reload speed
  3. MP for the veil and normal attack damage

02 · SYNERGY

Target bonds and core items

Prioritize the items below when available. Reaching the target combo requires additional items of the same category and their placement; leveling an item alone does not increase the combo count.

Primary

Glacier

10Combo target
  • Charm of Intelligence

    Secure an ice damage baseline.

  • Fluffy Fur Gloves

    Exploit the ice vulnerability of targets with Frostbite.

  • Echo of the Glacier

    Supplement periodic Frostbite application and defense.

Bond choices and conditions
Focus ice damage on Frostbitten targets and aim for the easier freezing conditions offered by higher bond tiers.
Support

Sturdy

4Combo target
  • Crossbow Quiver

    Reduce reload downtime for the fixed small magazine.

  • Stiff Crank

    Use the reload count to fulfill the item's growth condition.

  • Begonia Sachet

    Improve the damage of rounds fired as normal attacks.

Bond choices and conditions
Prioritize reload support to fire Frostbite rounds more often.
Support

Lake

3Combo target
  • Endoditte’s Paperweight

    Secure maximum MP and MP regeneration.

  • Water Bag

    Turn repeated MP use into maximum MP growth.

Bond choices and conditions
Secure the MP and recovery needed to activate the veil.

03 · HOW TO PLAY

Playing this build

1Early preparation

With Colossal Crossbow, mix Ice Bolt with normal firing and use a quiver to shorten reload gaps.

2Upgrades and transition

Shift to firing during the Frost Veil buff, then prioritize reloading after confirming Expansion Device's fixed 5 shots and piercing frostbite ammunition.

3Combat loop

  1. Fill the magazine, activate Frost Veil, then fire in the direction enemies are lined up.
  2. After spending five shots, reload quickly in a safe position.
  3. If the veil remains, fire another piercing volley; if it has ended, restore MP and reposition.

Boss fights

Find an angle that can pierce enemies behind the boss, but prioritize evading the boss's attacks. Do not approach the boss just before reloading.

Without the core items

Without Fluffy Fur Gloves, improve ice damage with Charm of Intelligence and Frostium Ring. Without Crossbow Quiver, support reloading with Stiff Crank.

04 · REVIEW NOTES

Cautions and scope of verification

Conditions to watch

  • The magazine is fixed at 5 shots; do not interpret increased magazine count as increased capacity per magazine.
  • Piercing frostbite shots require an active veil; do not assume they last throughout combat.

Needs further verification

No specific unresolved issues are listed. This does not mean performance has been verified in actual play.

View evidence and sources

Based on TEAM HORAY, Sephiria Fan Kit 2.4, and game 1.0.33 data. Reviewed 2026-09-19.

Effects and trigger conditions were checked against game data. Character and item combinations and play patterns are AI suggestions based on that data. Player records, community builds, and rankings were not used in the analysis.

  • Verifies attack changes and resource requirements at each evolution, and the crossbow's rules for shooting, reloading, and MP consumption.

    weapon 114 and parent 112 / weapon_index.csv; WeaponActions_ko-KR.txt
  • Verifies character, talent, and miracle effects, weapon restrictions, and fountain eligibility and capacity.

    characters-talents.json; miracles.json; fountain-eligibility.json

BUILD FEEDBACK

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AI build guidesView player records for this weapon

Game information and images: TEAM HORAY, Sephiria Fan Kit, and game data. Build choices and play suggestions are unofficial AI analysis.

Colossal Crossbow: Expansion Device · Piercing frostbite shots reloaded five at a time | Sephiria