Hello there!
I'm Jeskai Geist player and thought you could need some advice! ^^
-I would cut one
Steam Vents and
Hallowed Fountain. Too many shocks are very painful and you have to play cautious with your lifepoints in many matchups. I recommend replacing them with
Sulfur falls and
Glacial Fortress!
-Running a couple of remands will grant you a good tempo play (especially in these midrangy decks these days). I wouldnt go full playset with these because they can be pretty bad against super efficient decks like zoo and affinity.
- A playset of Helixes is a bit too much for me, I run three and have no problems with it and can make place for a flex-spot to test new cards or run another counter, like
Spell Snare!
- Sepll Snare as a one-of can be a major swing in your favor, especially if you're on the draw and can counter the turn 2 play of your opponent.
-
Sword of Fire and Ice is too slow in my books. Sure, it is a really good equipment, but you have to commit too many resources and tempo to hit that and connect it to a creature. Additionaly, many decks play artifact removal mainboard, naming Kolaghans Command as an example.
-
Cryptic Command is, hands down, a true powerhouse in this deck. It is so versatile, I run two copies. You have to run two copies. Everyone has to run two copies. Word.
If you dont know the YouTube
Channel "The Great Nate" - it's THE resource for everything Jeskai Geist related. Worth a watch and very educating!
Hope it helps