Here's a rendition of my other spellcraft deck. I think this one works better.
Hitting a
Centipede Keeper while you have Plunderer, Aphid, and a Tome feels good. I hit 3-4 free spellcrafts in one turn a few times. I feel like shadow has better spellcraft cards than fire, but maybe I'm just dumb.
The market could probably use some work as usual with my decks.
Tome of Repetition combos with
Riftfeeder Wasp and almost makes me want to add a 4th copy of the Tome. On the other hand, I don't run many sigils in this deck so 3 is probably a good number.
Pale Rider's Timepiece initially seemed like a no-brainer for the market. Often, I will play it when I already have close to a full board of units and the extra spellcrafts aren't useful. It's probably worth it alone for the extra battle abilities, particularly if you add them to Plunderer and get a berserk attack with lifesteal.
I almost want to add more copies of Queensguard Leader, since its spellcraft effect is killer when its free and when you can use it multiple times due to Tome and Aphid. But, it's not great early in the game. If I start my hand with it, I either discard it, trade it with the smuggler's market ablity, or it just sits idle until I get the free spellcrafts.
Overall, it's a pretty fun deck.