The Seven Deadly Sins: IDLE Excalibur Arthur Build and Team Guide

To get the most value out of Excalibur Arthur in The Seven Deadly Sins: IDLE, place him in your front-to-mid line, invest heavily into offensive critical stats, and pair him with energy-regenerating supports. Arthur functions as a hybrid brawler who absorbs early incoming attacks while dealing burst area-of-effect (AoE) physical damage, allowing teams to clear stages without relying on multiple defensive supports.

Kit Mechanics and Skill Loop

Arthur combines innate durability with scaling physical damage skills, allowing him to absorb opening burst damage and retaliate across enemy formations.

• Excalibur Cleave: Strikes Arthur's primary target for physical damage and cleaves adjacent units. This skill inflicts a defense-shredding debuff or adds conditional bonus damage depending on his current active buff tier.
• Royal Aura / Bastion Buff: Self-buff that raises Arthur’s attack power and critical strike chance while granting damage reduction or shields against crowd control.
• Ultimate Awakening: High-damage burst strike that wipes out frail backline enemies and deals heavy damage to front-row targets.

Because Arthur generates his own offensive stat increases through his buff skill, he can reach high damage thresholds independently. However, adding external energy batteries accelerates his rotation so he can trigger his ultimate more frequently across multi-wave content.

Recommended Team Synergies

Arthur thrives in aggressive compositions that provide skill acceleration, crowd control grouping, or physical stat boosts. Avoid placing him in passive stall teams that slow down his damage momentum.

Mode Applications

• Stage Progression: Arthur’s high defensive baseline prevents him from being eliminated by stray boss hits during high-tier stage pushing. His sweeping attacks clear mob clusters surrounding elite stage bosses.
• Arena and PvP: His durability protects him against burst-heavy dive teams. When enemy damage dealers push into your front line, Arthur's cleave skills punish overextended targets.
• Raid and Boss Fights: While Arthur provides substantial AoE coverage, his raw scaling enables strong single-target critical damage against isolated bosses, especially when paired with physical defense shredders.

Stat Priority and Investment

Because Arthur’s defensive survivability is built directly into his base stats and self-buffs, dedicate all potential rolls and gear stats to offensive output rather than base defense or flat HP.

1. Critical Hit Rate: Prioritize this stat until Arthur consistently triggers critical strikes on his abilities.
2. Critical Damage: Increase this next to amplify the burst output of his cleave and ultimate attacks.
3. Attack Percentage and Armor Penetration: Prioritize these stats once Critical Hit Rate is stable, or immediately if running external crit buffers like Margaret or Gowther to cut through high-stage enemy armor.

Summoning duplicate copies to unlock Arthur’s awakening stars directly boosts his base stat multipliers, scaling both his self-sustain and physical damage output.