Complex sentence: Chrell is a Skrull training instructor and commander who, like Kl'rt, possessed the powers of Mister Fantastic, Invisible Woman, Human Torch, and Thing.
Split into simpler sentences: Chrell is a Skrull training instructor and commander. Just like Kl'rt, Chrell possessed the powers of Mister Fantastic, Invisible Woman, Human Torch, and Thing.