'Spider' - The Most Compelling Mechanic of the Deck

Whenever a daring thief becomes untapped, you may exchange control of target n on land permanent. You can also tap em an instant speed, so you just c do it on the instept before your turn. I think there are versions of this deck that you can build that this is going to over perform in when you have more of those untap effects. That's actully how i'm building my deck, and i suspect that's how you built your deck.