Yeah no joke on Stormtamer prices. This or Mono-Blue is still one of the most budget things you can do though.
P0GONiP the Alterations are for unbeatable creatures like Ghalta, Lyra,
Tempest Djinn, or even Steel Leaf. Sometimes you will copy their big guy but have +1/+1 counters on your creature already or
Curious Obsession, so yours is better. Not so good against decks with removal though. They were a bit of a meta call when I thought Stompy would be huge but they could be sideboarded now that the meta has developed away from Stompy.
Anotheruser, I would consider up to 2 Freebooter main, perhaps trim a Thief and a Spybug, or shift them main instead of the Alterations. And definitely bring in the playset against control or against midrange that has removal noncreature spells. It is very good but the removal density in control decks is very high right now, expect to be staring at
Cast Down and
Moment of Craving and having no good picks.
Ritual of Soot also clowns this deck if you don't have a
counterspell so, have a
counterspell.