he uses a sword made entirely out of light, which can exist in multiple places and multiple times at once. when he has switched to a 4-dimensional form, it consumes alot of energy and continues to while he attacks/ defends. in this form he can exist at any place at any time multiple times, making him extremly vulnrable while still insanely powerful. his 4-d form is his last resort. his 2-d form makes him very defenseful but decreases his strength to attack, as if he was flat as a sheet of paper.