In Elden Ring: Shadow of the Erdtree, players have uncovered a sneaky way to Elden Ring Items defeat Rellana, Twin Moon Knight, without ever stepping foot inside her boss room. This tactic mirrors the infamous Dark Souls strategy of hurling dung pies over a wall to defeat a boss.
How to Cheese Rellana, Twin Moon Knight:

Locate the Rear Fog Wall: To pull off this trick, you need to find a specific fog wall behind Castle Ensis. Head southeast from Castle Ensis through a ravine, use sealed spirit springs to ascend into the Fort of Reprimand, and then continue north to the back entrance of Castle Ensis where Rellana's fog gate is located.

Use Long-Range Magic: From behind this fog wall, you can launch spells like Flame of the Fell God (recommended by user Ziostorm), Moonveil’s ranged attack, Impenetrable Thorns sorcery, or even Rellana’s own Carian Sovereignty spell. These spells need to be powerful enough to reach and damage her in the middle of the arena.

Be Cautious: While this method can work, there's a risk that Rellana might still try to attack through the fog wall. Some players have reported that she can retaliate, so be prepared for a potential counterattack.

Why You Might Want to Fight Her Normally:

Despite the allure of this cheese tactic, Rellana is one of the DLC’s most thrilling battles. As a dual-wielding Carian knight who employs magical moon attacks that you must dodge with precise timing, she offers one of the most exhilarating duels in the game. Additionally, her battle theme is a highlight, making the fight itself a rewarding experience.
Tips for a Legitimate Fight:

If you choose to face Rellana head-on, consider exploring the area around Castle Ensis to collect Scadutree Fragments. These fragments can help make the fight more manageable by boosting your resources before the battle.
Highlights of the DLC Weapons:

The Backhand Blade stands out among the new weapons in Shadow of the Erdtree. While it may not have the lore of legendary armaments, it excels in combat with the right build.

Dual-Wielding Advantage: The Backhand Blade shines when dual-wielded, allowing for rapid 4-hit combos in its light attack chain. While the heavy attack combo is shorter, it’s still effective and quick.

Unique Skill – Blind Spot: This skill allows you to dash quickly to the left, sidestep to the right, and strike from behind, making it highly effective against many enemies. Although it may not dominate boss fights, it simplifies most regular encounters.

Build Recommendations: To get the most out of the Backhand Blade, use a Strength/Dexterity build. Upgrading it to +25 with a Keen Affinity will leverage its D Strength and S Dex scaling for maximum damage.

Shadow of the Erdtree has expanded Elden Ring with fresh challenges and over 100 new weapons, maintaining balance with the base game. While new weapons will likely shift the PVP meta, classic builds remain viable and cheap Elden Ring Items exciting. Enjoy the new content and the unique experiences it brings!