You should clarify if "Starting Point \ Origin" is only able to target your creatures, or opposing creatures too. I guess you meant only your own creatures. If it is so, then I'd decrease it's cost, because even if you target a spark, the bottom card of your deck will often be a pillar, a phase shield, or some other cheap card, it will rarely be a dragon, even if you have 6 in your deck.
Also, what would happen if the card at the bottom is another "Starting Point \ Origin" ?