OSRS The Mimic Guide: How to Unlock, Mechanics, Gear & Drops

Overview: The Mimic at a Glance

The Mimic is a mini-boss in the mini-boss group, rated 3 out of 5 in our boss index and normally fought solo.

Before you can fight The Mimic you need Mimic cave key (master clue reward).

Casket unlock path is what this fight actually asks of you, and it is the thing standing between you and ring of 3rd age.

Its own attacks are melee (crush) and magic, so Protect from Melee and Magic both have a job.

In our index it sits in the mini-boss group at difficulty 3 of 5, where kill times come down to casket unlock path.

Access Requirements

The Mimic is gated behind Mimic cave key (master clue reward).

Mimic cave key (master clue reward) also tends to sit alongside the other mini-boss gates, so it is usually cheaper to clear them together than to come back for each one. The boss requirements checklist lists them by group.

Location and How to Get There

The Mimic is found in the strange casket upstairs in Watson's house in Hosidius.

Bring a mimic casket to the strange casket upstairs at Watson's. Mimic caskets only come from elite and master reward caskets, and only after you ask the strange casket to enable the chance — it is off by default, which is why some players never see one.

Recommended Combat Stats and Gear

Inventory and Supplies

• Food sized to its max hits: 23.
• Prayer restores for 2 prayers, not one.
• The access item in its requirement: Mimic cave key (master clue reward).
• A teleport out.

Mechanics: Attack Styles, Max Hits and Immunities

Fight Strategy: Casket unlock path

1. Position and set prayers first; it will not open on you.
2. Pray Protect from Melee and Magic as it switches.
3. Its lowest defence bonus is against magic.
4. Its 3-tick speed punishes greed.
5. Bank before a 23 can erase you.

• Know which caskets can roll the Mimic
• Bring a real fight inventory
• Treat it as a mini-boss, not free loot
• Elite rewards justify prep
• One death should rewrite your setup

Drops and What The Mimic Is Worth

Drops worth the trip: Ring of 3rd age, 3rd age items. Whether that is worth your time depends on how many kills an hour you personally get, which is a function of casket unlock path rather than of your gear list.

Combat Achievements

The Mimic has Combat Achievement tasks. With a 23 max hit the restrictions are mostly about execution rather than survival.

Task lists move with updates — read the current list in game.

Combat Achievements guide

Ironman Notes

Without a Grand Exchange, ring of 3rd age, 3rd age items has to be earned rather than bought, and this is the fastest table it sits on.

Common Mistakes and Death Causes

• Ignoring that know which caskets can roll the Mimic
• Ignoring that bring a real fight inventory
• Ignoring that treat it as a mini-boss, not free loot
• Ignoring that elite rewards justify prep
• Buying an upgrade before casket unlock path is consistent
• Gearing for The Mimic before finishing Mimic cave key (master clue reward)

FAQ

What do I need to fight The Mimic?

Mimic cave key (master clue reward)

Which protection prayer should I use at The Mimic?

It attacks with crush, magic, so pray against that.

How hard does The Mimic hit?

Max hits of 23, with 230 hitpoints.

Where is The Mimic and how do I get there?

The strange casket upstairs in Watson's house in Hosidius. Bring a mimic casket to the strange casket upstairs at Watson's. Mimic caskets only come from elite and master reward caskets, and only after you ask the strange casket to enable the chance — it is off by default, which is why some players never see one.

Is The Mimic worth doing?

Yes, for what it drops — Ring of 3rd age, 3rd age items — if you want that specific reward. It is not a general money maker, and we do not publish a GP per hour figure for it because that number changes with the Grand Exchange.

What kills people at The Mimic?

Know which caskets can roll the Mimic

Related Guides

• Bossing Progression Guide Easiest To Hardest
• Osrs Bosses For Beginners
• Boss Gear Progression Guide
• PvM progression guide
• Best bosses for money
• Combat Achievements guide

Bottom Line

The honest summary of The Mimic is that casket unlock path is the whole difficulty, and it is learnable in an evening. After that the only variable left is how many trips you are willing to do for ring of 3rd age.

If The Mimic is blocking a Combat Achievement or an unlock you actually want, our PvM service is done by hand — no automation. Otherwise the bosses list has the full index.