Crimson Moon Guide
Cardinal Mathias Boss Fight (Archspire Cathedral Route)
Mission II: The Archspire Cathedral — knives, consumables, Angelic Ascension, and second-attempt safety net.
Last updated: September 3, 2026
Quick Answer
Mission II: The Archspire Cathedral. Burn knives and consumables. Dodge telegraphs, punish 1–2 hits. Save Angelic Ascension for sub-50%. Second attempt if you die.
Alternative to the Second District poison/freeze route — knives + Angelic Ascension clear for Cardinal Mathias in Mission II: The Archspire Cathedral.
Loadout
Fill inventory before the arena. Use everything — Mission II ends here.
- Throwing knives — chip without melee trades.
- Health potions — as many as you carry.
- Damage buffs — pop before engage if you have them.
Keep one potion for phase two.
Attack patterns
| Attack | Telegraph | Dodge | Punish |
|---|---|---|---|
| Horizontal slash | Weapon to side | Roll through swing | 1–2 hits |
| Overhead smash | Weapon overhead | Roll sideways (not back) | 2–3 hits, back off |
| Lunging thrust | Pulls back | Roll diagonally forward | 1 hit, reposition |
Overhead has small AoE on impact — sideways only.
Fight flow
- Open with 2–3 knives while he walks in.
- Maintain ~two rolls of distance.
- Bait swings, dodge, punish short — don't get greedy.
- Angelic Ascension after a heavy dodge, sub-50% HP — burst melee or knife flurry.
- Die once? Second attempt at the checkpoint — learn patterns first run, go all-in second.
Rewards
Mission II complete, district cleared, Mission III unlocked. Upgrade at hub before Elk Grove Academy or Moore Manor.
Hub: Mission II section.
More Crimson Moon guides
Return to the guide hub for the full walkthrough index, or browse every game in the library.