Hearthpwn

Card draw/deck thinning feels little to non-existent (unless you high roll with Mad Scientist, Kazakus, and Solarian); your thoughts?

Skulking Geist × 1  ? In currently meta?

I faced a lot of Jade Druids in Rank 5 but if you want add another card instead of Skulking Geist its kind a removable card in this meta.

nice deck.. Is Inkmaster Solia  needed here? can i replace it?

Hi its not really needed I wouldn't bother to craft it 

sure if you don't have her you can put another thing like Manic Soulcaster or Sludge Belcher

I've never been a huge fan of Solia - she basically just tacks a 5/5 body onto an expensive spell. And while getting something like a 5/5 that casts a Flamestrike is nice, I usually find it's not worth the card slot that could be given to something more important.

Personally, I run a similar Zephrys package in most of my highlander decks, and you could look at doing it here - Brann, Zola and Zeph (as are in this deck), but also Barista Lynchen and Emperor Thaurissan. Even without Emp you can do a really nice Brann + Zeph + Zola turn or Brann + Zeph + Lynchen turn, but with Emperor you can actually play all 4 at once. Admittedly you'd almost surely overdraw with this (2 cards from Zeph, 2 copies of Zeph from Zola, 2 copies of Zeph and Zola from Lynchen - so you'd almost have to do this while they're the only cards in your hand to prevent wasting any of them or overdrawing), but that whole situation is just the highest roll, and quite frankly even just getting one extra copy of Zephrys with Lynchen's battlecry is worth it (you can do Zeph + Zola + Lynchen for good Brannless value with this setup).