Blue Moon Tassets OSRS: A Comprehensive Guide to This Magical Armor

Old School RuneScape (OSRS) is packed with exciting gear, and the Blue Moon Tassets stand out as a unique piece of magical armor. Introduced on March 20, 2024, as part of the Moons of Peril update, these tassets are a reward from the Lunar Chest in Neypotzli. Whether you’re a magic enthusiast or just looking to optimize your gear setup, this blog post dives deep into everything you need to know about the Blue Moon Tassets in OSRS. From stats and requirements to their special set effect, we’ve got you covered!
The Blue Moon Tassets are a degradable piece of leg armor designed for magic users in OSRS. Requiring 75 Magic and 50 Defence to equip, they’re a mid-to-high-tier option for players looking to blend magical offense with decent defensive stats. These tassets are part of the Blue Moon armor set, which enhances your combat capabilities when paired with other pieces like the Blue Moon Chestplate and Helm.
How to Obtain Blue Moon Tassets
You can snag the Blue Moon Tassets from the Lunar Chest in Neypotzli, a perilous dungeon introduced in the Varlamore update. The chest requires Lunar Keys, earned by defeating bosses within the dungeon. While the drop rate isn’t publicly specified, it’s a rewarding grind for those tackling this content.
Key Stats of Blue Moon Tassets
Here’s a quick rundown of the tassets’ stats in their “new” condition:
- Magic Attack Bonus: +22
- Magic Defence Bonus: +32
- Strength Bonus: +1
- Magic Damage Bonus: +1%
- Crush Defence Bonus: +23
These stats make the tassets a solid choice for magic-focused builds, though they lack significant melee or ranged defence bonuses.
The Blue Moon Armor Set Effect: Frostweaver
Wearing the full Blue Moon armor set—helm, chestplate, and tassets—unlocks the Frostweaver set effect when paired with the Blue Moon Spear. This effect is a game-changer for hybrid combat styles, blending magic and melee seamlessly.
How the Frostweaver Effect Works
After casting a bind spell (like Bind, Ice Barrage, or Grasp spells), your next melee attack with the Blue Moon Spear has a chance to strike instantly, bypassing action delays. The odds are:
- 20% chance after a Standard or Ancient spellbook bind (e.g., Bind or Ice Barrage), even if it doesn’t freeze the target.
- 50% chance after an Arceuus spellbook Grasp spell, regardless of binding success.
This can be toggled to trigger automatically via the combat options menu, making it a smooth addition to your rotation.
Best Use Cases for Frostweaver
The Frostweaver effect shines in PvM scenarios where you need to control enemies while dealing damage. Think of boss fights like the Grotesque Guardians or PvP situations where locking down opponents gives you the edge. It’s less useful in pure magic setups without the spear, but the synergy is undeniable when fully equipped.
Blue Moon Tassets: Durability and Repair Costs
Like Barrows gear, the Blue Moon Tassets degrade over time. They start with 3,000 charges, losing 1 charge every 54 seconds of combat. That translates to about 45 hours of continuous use before they break.
Repairing Blue Moon Tassets
Once broken, you’ve got two repair options:
- NPC Repair: Bob or Dunstan will fix fully degraded tassets for 1,500,000 coins.
- DIY at an Armour Stand: Costs drop by 7,500 coins per Smithing level. At 99 Smithing, it’s just 757,500 coins.
Boosts like the Dwarven Stout can further reduce costs, making self-repair a budget-friendly choice for skilled smiths.
Is It Worth Repairing?
With prices fluctuating (check GE Tracker for the latest), it might sometimes be cheaper to buy a new pair rather than repair. As of April 4, 2025, keep an eye on the Grand Exchange to decide—repairing often makes sense for long-term use, but market trends can shift the math.
Comparing Blue Moon Tassets to Other Leg Armor
How do the Blue Moon Tassets stack up against other OSRS leg slot options? Let’s break it down with a comparison table:
Item | Magic Attack | Magic Defence | Strength Bonus | Requirements | Degradable? |
---|---|---|---|---|---|
Blue Moon Tassets | +22 | +32 | +1 | 75 Magic, 50 Defence | Yes |
Ahrim’s Skirt | +22 | +22 | 0 | 70 Magic, 70 Defence | Yes |
Ancestral Robe Bottom | +26 | +24 | 0 | 75 Magic, 65 Defence | No |
Elder Chaos Robes | +13 | +13 | 0 | 40 Magic | No |
Blue Moon Tassets vs. Ahrim’s Skirt
Ahrim’s Skirt offers identical magic attack but lower magic defence (+22 vs. +32). The Blue Moon Tassets also bring a slight strength bonus and the Frostweaver effect, making them more versatile for hybrid setups despite similar repair mechanics.
Blue Moon Tassets vs. Ancestral Robe Bottom
Ancestral Robe Bottoms edge out with a +26 magic attack bonus and no degradation, but they lack the set effect and have weaker magic defence (+24). If you’re min-maxing pure magic DPS and can afford the steep price, Ancestral might win—otherwise, Blue Moon holds its own.
Budget Alternatives
For lower-level players, Elder Chaos Robes are a non-degradable option with modest bonuses (+13). They’re far cheaper but lack the punch and utility of the Blue Moon Tassets.
Optimizing Blue Moon Tassets in Your OSRS Setup
To get the most out of the Blue Moon Tassets, consider your playstyle and goals. Here are some tips to maximize their potential:
Pairing with the Right Weapons
The Blue Moon Spear is a must for the Frostweaver effect, but you can also pair the tassets with staves like the Sanguinesti Staff or Trident of the Swamp for pure magic damage. The +1% magic damage bonus stacks nicely with other boosts.
Ideal Scenarios for Use
- Bossing: Use in fights like Zulrah or Dagannoth Kings where binding and quick melee follow-ups matter.
- Slayer: Great for tasks requiring crowd control, like Greater Demons or Aberrant Spectres.
- PvP: Surprise opponents with fast spear strikes after a freeze.
Balancing Defence and Offence
The tassets’ lack of melee defence means you’ll want a strong shield (like an Elysian Spirit Shield) or prayer-switching skills to mitigate damage. Prioritize magic defence in hybrid setups to leverage their +32 bonus.
In conclusion, the Blue Moon Tassets are a fantastic addition to OSRS for magic users who enjoy a bit of flair and utility. Their unique Frostweaver effect, solid stats, and accessibility via Neypotzli make them worth chasing. Whether you’re weaving spells or spearing foes, these tassets bring something special to the table. Ready to grind for them? Dive into Neypotzli and let the lunar magic flow!