An exhausted opponent gives up, a common event when playing White/Blue
The first and second ability on Requisition Raid make me think this is a good sideboard card
I just saw this card spoiled a few hours ago and dont have a real plan, but here are 2 cards I would yank out of bulk
For example, if you control The Ozolith ("Whenever a creature you control leaves the battlefield, if it had counters on it, put those counters on The Ozolith.") when Sin's last ability resolves, you'll put the appropriate number of each kind of counter onto both The Ozolith and the target creature
Its pretty fragile and costs a lot of mana, so youll have less land in hand once you reach it
In the later stages of the game, an artifact that effectively draws a million cards per turn and resets its controller's life total back up to 20 each turn is staggeringly powerful