I will agree that it is powerful. However, it is not overpowered.
For the fractal issue, let's compare:
Fractal Spark: 10 + 0 for 24 damage
Fractal Ball Lightning: 10 + 0 for 40 damage
Aetherial Chronarch + fractal something (photon for example): 3 + 10 + 0 for 10 damage
So what does that look like? More cost for less damage. However, getting the +hp makes this Aether's sturdiest creature, on par with Phase Dragon; it's only true weakness being Reverse Time, to which the dragon is resistant. From that perspective, I don't even need the
drawing ability. Keep in mind that Aether has a great stalling factor, as well. This only supports using this in Mono Aether. And yet another good thing about this is, it greatly promotes using mindgate.
Things that Chronarch counters especially: Shard of Bravery, Reverse Time
Things it supports: Mindgate, Shard of Serendipity, Fractal
The thing about the drawing ability, if it is to be used, is the drawback outdoes the use. To keep this as a sturdy attacker, you have to keep cards in your hand, it's an anti rush card. So while you get the advantage of drawing, the cards are now effectively dead in your hand - and there's no putting them back in your deck. So the situation there, is: have dead cards to keep it alive, or make use of other cards while having it be weak. I could say more, but I have class right now.