Cataphract is a really cool unit but in pve he ends up with 3 pop cost and 80 Damage. He is huge vs infantry but compared to champs, zerks and especially immortals, he is outclassed. The Legendary Advisor should have -1 pop cost / +20% damage / Bonus damage vs buildings. I think Pharos already suggested this but i could not find the post. Would be an interesting discussion about it.