Mon-El - Grants him all of Mon-El's Daxamite abilities (basically the same as Superman, except his weakness is lead and not Kryptonite). However, unlike Mon-El, the Composite Superman is immune to the effects of lead (he wears a lead mask and it doesn't harm him at all). Matter-Eater Lad - Gives him the ability to eat and digest anything, even substances that are invulnerable to Kryptonian super-powers. We never saw him actually use this power, but we know he has it. Starboy - Gives him the ability to temporarily increase the weight/mass of objects and people. Element Lad - Gives him the ability to transmute elements and matter. Notably, he is able to use this to turn ordinary matter in to Green Kryptonite and back, and he also demonstrated the ability to transform things into tin, diamond, antimatter, and other substances. Light Lass - Just like Starboy, except in reverse - the ability to make things lighter. The two powers combine, much like Shrinking Violet and...