Priest of Yawgmoth has only ever been printed once, despite it being a common and thus not on the Reserved List
The thing about Ihsan's Shade that made it playable is that it wasn't vulnerable to the popular spot removal of its era
You get an emblem with "Instant and sorcery spells you cast have storm." (Whenever you cast an instant or sorcery spell, copy it for each spell cast before it this turn.) +1: Create a 1/1 blue and red Otter creature token with prowess
And, as a bonus, it offers us a bit more card draw
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Overall, the deck is consistent, gets the plan going right out of the gate, and can survive being interacted with