Requirements

• Must have beaten the Astra Malorum Main Quest
• Playing on Tier I or higher of Cursed
• Playing on Astra Malorum
• Must be Round 40 or above
• Wisp Tea
• Aether Shroud

How to Unlock

You must kill O.S.C.A.R. with your melee weapon/punch, while he is being attacked by your Wisp Tea companion. This is an extremely annoying challenge, however, there are some crucial steps you can take to greatly increase your chances of success:

• Save the first O.S.C.A.R. that spawns until Round 40 so he maintains his lower round health.
• Upgrade your melee weapon as much as possible, and purchase Melee Macchiato to make your melee attacks more powerful.
• Equip the Mask of Distraction and Extension augments to ensure your wisp is active for longer and cannot do too much damage to O.S.C.A.R.. The Mask of Distraction also does AOE damage, so if it tries to attack a zombie really close to O.S.C.A.R. it can still affect him.
• Once your wisp is active, throw a Monkey Bomb or Kazimir away from O.S.C.A.R. to distract the zombies so that your wisp can solely attack him and activate Aether Shroud to begin attacking O.S.C.A.R..

Wisp Tea cannot get the final blow. You must get the final blow with your melee weapon/punch for it to count.

If done correctly, you will hear Mister Peeks laugh and the relic trial portal will spawn in the Archive Of Orbis for you to enter. This relic's trial is: No Perks. Importantly, all Eternal Perks are kept during this trial, so ensure you do as many T.E.D.D. Tasks as possible to gain as many Eternal Perks as you want.

Video Guides

Guide by ZoneX

Credits

Some images were sourced from the following community members:

• Nanikos
• TheGamingRevolution