Sneak Attack

Running a Rakdos deck, I remembered that Sneak Attack is a card.

I started thinking, "Is there a '2 card combo' with Sneak attack?"

The two cards in question would be, obviously, [[Sneak Attack]], but then one other card that allows us to either search for a combo or start a line that only needs to cast Sneak Attack.

My current thought is something like:

Sneak Attack searching for [[Sidisi, Undead Vizier]], exploiting Sidisi to search for [[Garna, the Bloodflame]]. This feels like it could be something, but we need mana loops-- thinking [[Priest of Urabrask]]-- and I think a sac outlet or something.

I am not smart enough to finish it out I think. But I'm playing around with it and trying to figure it out. Any thoughts and input would be helpful!