An exhausted opponent gives up, a common event when playing White/Blue
While its main appeal for the list may be its tap ability to deal 2 damage to flying creatures, what makes it a solid threat is its transformed side that lets it battle another creature regardless of whether it has flying, all for just 1 mana
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
The first and second ability on Requisition Raid make me think this is a good sideboard card
Everything will be alphabetical too
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