OSRS Grid Master: Conquering Corrupted Gauntlet & PvM | Tons of XP Blog

Q: What are Combat Masteries in Grid Master?

Combat Masteries are permanent, passive buffs to your Melee, Ranged, and Magic accuracy and damage. You gain a full tier of masteries by completing specific tasks (like defeating Scurrius) or by finishing entire rows/columns on the grid. They are the key to making endgame PvM manageable.

Q: What is the reward for the Corrupted Gauntlet task?

Completing the Corrupted Gauntlet task unlocks the `Banker's Note` relic. This is one of the best utility relics, allowing you to note and un-note items anywhere in your inventory, which revolutionizes skilling efficiency by removing the need for frequent banking.

Q: Do I have to complete the full Inferno for the Grid Master task?

No, thankfully! The task only requires you to 'Defeat Jal-Zek within the Inferno'. Jal-Zek is the powerful mage monster that first appears on wave You do not need to defeat TzTok-Jad or survive all 69 waves for this specific, powerful unlock.

Q: What is the best strategy for Grid Master bosses?

The core strategy is to not rush them. First, focus on completing easier grid tasks that lie on specific rows (Rows 3 & 5) and columns (Columns 3 & 5). This will stack multiple tiers of Combat Masteries, dramatically increasing your power and making the bosses significantly easier to defeat.

A strategic guide to dominating the toughest PvM tasks in Grid Master, including the Corrupted Gauntlet. Learn how to leverage Combat Masteries and relics to defeat any boss.

Published on: October 17, 2025 by Tons of XP Team

Tags:

osrs

grid master

pvm

corrupted gauntlet

bossing

strategy guide

combat masteries

Unleash Your Power: A Guide to Grid Master PvM

The Grid Master event isn't just about skilling with boosted XP; it's a chance to experience a true power fantasy and take on Old School RuneScape's toughest bosses. Thanks to stackable Combat Mastery buffs and powerful relics, challenges that normally require months of preparation and max-tier gear can be conquered in a fraction of the time.

This guide focuses on the ultimate strategy for PvM success in Grid Master: getting strong first, then systematically dismantling every boss on the grid.

The Secret Weapon: Stacking Combat Masteries

Before you even think about stepping into the Gauntlet or facing down General Graardor, you must understand Combat Masteries. These are permanent, account-wide buffs that provide a massive increase to your accuracy and damage with all three combat styles. You don't get them from leveling up; you earn them from the grid.

How to Get Them: You unlock a full tier of masteries (for Melee, Ranged, and Magic simultaneously) by completing specific tasks and, more importantly, by completing full rows or columns.

Key Tasks for a Tier: Defeat Scurrius and Open Bryophyta's chest.
Key Lines for a Tier: Completing all tasks in Row 3, Row 5, Column 3, or Column 5 each grants another full tier.

The Strategy is Simple: Do not rush the hard bosses. Instead, plan a path through the grid that clears these specific lines and tasks first. Each tier you unlock is a monumental power spike. Trying to do the Corrupted Gauntlet with zero masteries is a recipe for frustration; doing it with three or four tiers feels like you're using a maxed main account.

Spotlight: Conquering the Corrupted Gauntlet

The Corrupted Gauntlet is one of the most pivotal PvM tasks on the entire grid. It is a true test of mechanical skill, but the reward is arguably one of the best utility relics in the event.

The Game-Changing Reward: Banker's Note Relic Completing this task unlocks Banker's Note, a relic that lets you convert items to and from bank notes directly from your inventory, anywhere in the world. The time-saving potential is limitless. For skills like Construction, Smithing, Herblore, and Cooking, this relic eliminates thousands of bank trips, turning hours of grinding into minutes.

Grid Master Strategy for The Gauntlet:

Power Up First: We can't stress this enough. Clear the Combat Mastery lines on the grid before you enter the "Red Prison." Aim for at least 2-3 tiers. This boosts your damage so much that the fight becomes far more forgiving, allowing you to focus on mechanics.
Instant Access: A nearby grid task, "Kill a lizardman shaman," auto-completes the Song of the Elves quest, giving you immediate access to Prifddinas and The Gauntlet.
Focus on Mechanics: Even with boosted stats, you can't ignore the fight itself. The Hunllef's tornadoes, shifting floor patterns, and prayer-disabling attacks are still deadly. The difference is that with high masteries, you'll have the damage to end the fight quickly, reducing the chances of making a fatal mistake.

The Gauntlet is a major roadblock for many players, even with these advantages. If you find yourself stuck or just want to unlock the powerful Banker's Note relic without the headache, our team can help.

Tackling Other Key PvM Grid Tasks

The same principle of "power up first" applies to every other high-level PvM challenge on the grid.

Jal-Zek (Inferno) for Slayer Master: This is another top-tier unlock. The task requires defeating the Jal-Zek that appears on wave 35 of the Inferno. Your reward is the Slayer Master relic, which makes every monster you kill count as being "on-task" and grants bonus XP. It's a colossal boost for combat and Slayer training. With a few mastery tiers, reaching wave 35 is very manageable.
Tombs of Amascut / Chambers of Xeric for a Megarare: Yes, you read that right. Completing a task in either of these raids rewards you with your choice of a Twisted Bow, Scythe of Vitur, or Tumeken's Shadow. With an 8x drop rate on uniques and the power of Combat Masteries, this is your best chance to wield one of OSRS's most legendary weapons.
Zulrah & Vorkath: With auto-completed quests for fast access and an 8x unique drop rate, farming these bosses for their signature drops becomes a highly rewarding activity, perfect for gearing up or just enjoying the loot.

The key to PvM in Grid Master is patience and strategic planning. Use the grid to your advantage, build your power through masteries, and then unleash your full potential on the toughest bosses OSRS has to offer.

Stuck on a tough boss like the Hunllef, or don't have a team for raids? Our expert PvMers are ready to help. Join our community to get live help or arrange for a pro to secure those difficult grid completions for you.

→ Get Help & Join Our Discord Community
→ Check Out Our Full Range of OSRS PvM Services
→ Back to the Grid Master Starter Guide

Frequently Asked Questions

+What are Combat Masteries in Grid Master?

Combat Masteries are permanent, passive buffs to your Melee, Ranged, and Magic accuracy and damage. You gain a full tier of masteries by completing specific tasks (like defeating Scurrius) or by finishing entire rows/columns on the grid. They are the key to making endgame PvM manageable.

+What is the reward for the Corrupted Gauntlet task?

Completing the Corrupted Gauntlet task unlocks the `Banker's Note` relic. This is one of the best utility relics, allowing you to note and un-note items anywhere in your inventory, which revolutionizes skilling efficiency by removing the need for frequent banking.

+Do I have to complete the full Inferno for the Grid Master task?

No, thankfully! The task only requires you to 'Defeat Jal-Zek within the Inferno'. Jal-Zek is the powerful mage monster that first appears on wave 35. You do not need to defeat TzTok-Jad or survive all 69 waves for this specific, powerful unlock.

+What is the best strategy for Grid Master bosses?

The core strategy is to not rush them. First, focus on completing easier grid tasks that lie on specific rows (Rows 3 & 5) and columns (Columns 3 & 5). This will stack multiple tiers of Combat Masteries, dramatically increasing your power and making the bosses significantly easier to defeat.