OP04-031-donquixote-doflamingo can be a great way to take control of the tempo of the game by locking three of your opponent's cards out of refreshing
Since your Rats have high power and come back anyway, you can sacrifice them, mill yourself for 5+ cards, and hopefully dump more Rats in the bin than you started with
For example, if the first creature spell you cast in a turn has a mana cost of, you could choose 2 as the value of X and payto cast the spell
It gets some value from your opponents, and sometimes youll get a win with its upkeep trigger
You can find the SDD by opening the Events page and filtering it to Events
Even without those things however, Shorikai is an undeniable value engine doing exactly what this deck wants to be doing