Lukinator rolled 12 dice for his electro-bolt. I roll 15 for my spin attack. Ergo, I have 15 in my relevant stat, he has 12.
Furthermore, I have extended success on my relevant stat. He has extended fumble.
This means I succeed twice as often, and have a higher maximum damage. He can do, at most, 12, and I can do at most 15. He has a 1.2% chance of obtaining maximum damage, and I can't remember how to calculated his chances of fumbling (1/3 each, need 6, out of 12 chances). I have a 2.2% chance of obtaining maximum damage, and a lower chance of fumbling (1/6 each, need 8, out of 15 chances).
Let's also look at Xantalos's chance to resist damage. He had 14 dice rolled, therefor a 14 in the relative stat. Due to wild rolls on 3s AND 4s, he has extended wild. He has a 1.2% chance of maximum resistance (comparable to Lukinator's lower stat), and an easier time of avoiding fumbles than Luke (1/6 each, need 7, out of 14 chances).
Since Logic is rolled for abilities, Lukinator's using his inferior logic to try and win. He might be better off not trying to use abilities, but instead attack directly. Meanwhile, if Xantalos wasn't up against someone with 15 logic extended success with a fast ability, he'd be quite a tank, and recover AP virtually every time someone hit him (1/2 chance each, need 7, out of 14 chances).
Finally, I will point out that no-one rolled to resist damage from Lukinator's attack, it cannot be resisted. His ability would be far more overpowered then mine if he had the stats to go with it.