Before starting, ensure you have:

• All Grim Relics equipped (enables Tier 1)
• Aether Shroud Field Upgrade equipped
• Wisp Tea Perk-a-Cola planned (do NOT use any Major Augment on Wisp Tea!)

Recommended augments for Wisp Tea:

• Extension (Minor) - Wisp lasts longer
• Haste (Minor) - Wisp appears faster

Survive until Round 40.

Important Tip: If you see O.S.C.A.R. spawn in early rounds, ignore him and don't damage him. His health does NOT scale if he spawned early - this makes the next step much easier!

Purchase Wisp Tea and Melee Macchiato perks before attempting the next step.

This is the trickiest part of the relic hunt:

1. Damage O.S.C.A.R. with your weapons until he's low health.
2. Kill zombies near O.S.C.A.R. until the Wisp Tea ghost spawns.
3. Make sure the Wisp ghost is targeting O.S.C.A.R. (not regular zombies).
4. Activate Aether Shroud.
5. Melee attack O.S.C.A.R. (knife) and kill him while the Wisp is still on him!

Tips:

• Use a Pack-a-Punch Tier 3 Knife with Legendary Rarity.
• Melee Macchiato perk increases melee damage significantly.
• The Wisp Tea without Major Augment deals minimal damage, letting you control when O.S.C.A.R. dies.

After killing O.S.C.A.R. correctly, an orange portal will spawn at the west wall of the Archive of Orbis.

Interact with it to begin the Sinister Trial.

Trial Rules: All Perks are DISABLED and cannot be purchased during the trial! However, permanent perks still work.

Survive 5 waves of zombies without perks:

• Wave 1, 3, 4: Regular zombie waves
• Wave 2: HVT Uber Klaus
• Wave 5: HVT O.S.C.A.R.

Tips:

• Use the Apogee Annihilator trap at Stargazer's Courtyard - it shreds enemies!
• A Pack-a-Punched Ray Gun is very effective.
• Stay mobile and use the entire arena.

After completing all 5 waves, you will receive the Spider Fang relic.