In Elden Ring: Shadow of the Erdtree, a clever method has emerged for Elden Ring Items taking down Rellana, Twin Moon Knight, without even entering her boss room. This trick is reminiscent of the infamous Dark Souls dung pie tactic, where players can defeat a boss by attacking from outside the arena.
How to Cheese Rellana, Twin Moon Knight:

Find the Fog Wall: To pull off this strategy, you'll need to access a specific fog wall behind Castle Ensis. Travel southeast of Castle Ensis through a ravine and use spirit springs to ascend into the Fort of Reprimand. After clearing the fort, follow the road north to the back entrance of Castle Ensis where Rellana’s fog gate is located.

Cast Long-Range Magic: From the safety of this rear fog wall, use long-range 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. As long as your spell can reach the center of the arena, it will inflict damage on Rellana.

Beware of Counterattacks: Rellana may still attempt to retaliate through the gate, so be cautious. Some players have reported that she has managed to attack through the fog wall, so keep an eye out for unexpected responses.

Why You Should Consider Fighting Her Normally:

Despite the ease of this cheese method, Rellana is one of the most exhilarating bosses in the DLC. Her dual-wielding combat style and magical attacks that require quick reflexes and strategic jumping make for a thrilling fight. Additionally, her theme music is a highlight of the encounter. If you opt for a normal fight, you'll fully experience her challenging yet rewarding battle.
Additional Tips:

If you choose to face her legitimately, you can explore the area around Castle Ensis to collect Scadutree Fragments, which can help ease the difficulty of the fight.
Noteworthy Weapons in the DLC:

The Backhand Blade is a standout weapon in the Shadow of the Erdtree DLC. While it may not be the most legendary armament, it offers exceptional performance with the right build.

Dual-Wielding Advantage: When two-handed, the Backhand Blade allows for rapid 4-hit combos, with each light attack landing twice except for the final strike. The heavy attack offers a shorter combo but is still effective.

Unique Skill – Blind Spot: This ability lets you quickly dash to the side and then attack from behind, making it a powerful tool against many foes. While it might not dominate boss fights, it simplifies most other encounters.

Build Recommendations: To maximize the Backhand Blade’s potential, aim for a Strength/Dexterity build. Upgrading it to +25 with a Keen Affinity will enhance its damage output with D Strength and S Dex scaling.

Shadow of the Erdtree has expanded Elden Ring with challenging new bosses and over 100 new weapons, balancing fresh options with the established meta. While new weapons will likely influence the PVP scene, your favorite old builds remain viable. Enjoy exploring these additions and savoring the new challenges and Elden Ring Items for sale rewards they bring.