So, Alexandros seems pretty strong, and fairly well balanced. He has been showing up in the heroic portal more than ever recently, which I don't mind because I like the hero. The problem is, he just isn't good. He is about as average as you can get with a hero, and that may be what you (the Devs) are going for with him. I just wanted to post my opinion on how you could tweak him, because I see so much potential in him.
His only real issue is his first ability, which "Reflects Damage". Now, when I first saw this I thought it completely reflected that percentage of damage, so if you reflect 60% back, you take 40 percent. I think that if you were to establish that as Alex's first ability, it would make him far more viable. I understand that that could make IGOROK too powerful with his taunt, but maybe you could make a unique form of reflection for Alex only.
Alternatively, you could just boost the reflection % on his first ability up past 100%, so more damage is reflected than taken. This would have practically the same effect, but without reducing damage taken.
Thank you for reading my suggestions, and I hope you consider them, even if you don't implement these exact changes.