Jevil — Boss Cheat Sheet
The Chaos Jester, Deltarune's first secret boss. Expand each attack to learn its dodge, tick off the patterns as you go, and read the unlock + SPARE notes.
Attack patterns
Tap a row to expand. Check off each pattern as you learn it.0 / 4 learned
Weakness
Jevil has no elemental weakness. Pirouette is cheap but its effect changes by turn; Hypnosis costs 50% TP and advances exhaustion consistently.
SPARE route
Use Pirouette and Hypnosis until Jevil is tired, then cast Ralsei's Pacify. FIGHTing to 0 HP gives a different equipment reward.
Tactics
Bring a full healing inventory. Defend with spare party turns to fund Hypnosis, and learn the deterministic attack order instead of reacting from scratch.
Recommended setup
- Top Cake or Spin Cake
- Darkburgers
- Best Ch1 armor
S-rank / no-hit
The attack order is deterministic, making repeatable positioning more valuable than risky TP grazing.
Unlock keys
- ▸Broken Key A: talk to Jevil, then ask Seam about him in the Field shop.
- ▸Broken Key B: take the hidden dark path at the southwest edge of the Forest Sheary room.
- ▸Broken Key C: solve the Field card-suit puzzle in Diamond, Heart, Club, Spade order.
- ▸Take all three pieces to Malius, then use the repaired Door Key at Jevil's Card Castle cell.