H'El

H'El is a character appearing in DC comics as part of the long-running Superman media, in which he has been established as a villain with particular interest in Superman, Superboy and Supergirl - collectively known as the "Super Family": like these characters he is a member of the extremely powerful alien race known as Kryptonians but lacked their restraint and became a relentless and deadly opponent.

First appearing in Supergirl Volume 6 issue number 13 in 2012 he is classed as a "modern age" villain and as such has many darker elements to his character as well as more complex goals than the more traditional villains of comics (for example he does not consider himself an evil being, in stark contrast to characters such as Darkseid, who not only know they are evil but relish the fact).

History
H'El was a Kryptonian space explorer who had an extremely strong bond with Jor-El and Lara, who he saw as adoptive parents - when Jor-El began to realize Krypton was in danger of destruction he created a prototype starship and tasked H'El with preserving the planet's knowledge and history through the stars, with this H'El would be launched into space (in a very similar manner to how an infant Superman and a young Supergirl would also be launched off-planet and survive Krypton's demise).

Unfortunately for all H'El's voyage was a difficult and dangerous one, eventually he would arrive on Earth 27 years after Krypton's destruction and vowed to go back in time and stop Krypton's destruction - a goal that would be noble if H'El had absolutely no care if his plans would endanger or even destroy Earth.. putting him in conflict with Superman and his allies.

Abilities
as a Kryptonian H'El has a number of immense powers comparable to Superman at his prime, in addition he was exceptionally intelligent - to the point of superhuman.

H'El also had a number of unique powers not often seen in Kryptonians such as teleportation (sufficient to move instantly between Earth and the sun) - telekinesis on a molecular-level, numerous telepathic powers sufficent to fool Supergirl into thinking he was Superman and finally the ability to astral-project across great distances.