This isn't a thrill
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
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
FEATURE RECOMMENDED DECKS(Blue/Black) Rebecca Concept In exchange for being unable to attack, Leader Rebecca offers powerful removal and draw abilities
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