Best summoner spells for Arthur are: Flicker, Execute.
Best items for Arthur are: Mantle of Ra, Sonic Boots, Frost Cape, Gaias Standard, Medallion of Troy, Blade of Nirvana.
Best Arcana for Arthur are: 10 Indomitable, 10 Undying, 10 Focus.
Best Rune for Arthur are: Lokheim + Human.
The heavens grant Arthur 88 (+8 each level) armor points, which scale with hero level.
Skill 1: Righteous Fervor
Arthur increases his power by 30%, accelerating his movement. Arthur leaps towards his opponent during his subsequent regular attack, causing 180/205/230/255/280/305 (+1.0 AD) physical damage and hindering their movement by 90% for one second. The affected target will be marked for 5 seconds by this ability. Enemies that have been marked will take additional magic damage from Arthur’s normal attacks and abilities equal to a portion of their maximum HP. For five seconds, this power also makes adjacent allied heroes move more quickly.
Skill 2: Holy Guard
In a circle around himself, Arthur calls forth heavenly swords that strike for five seconds while delivering 100/125/150/175/200/225 (+0.4 AD)(+0.4 AP)magic damage each hit.
Skill 3: Deep Impact
In addition to causing 750/1000/1250 (1.3 AD) physical damage and throwing nearby foes into the air for 0.5 seconds, Arthur leaps high into the air before crashing toward his target. For five seconds, enemies caught in the blast radius take physical damage of 100/125/150 (+0.35 AD) per second.