The ability text is a bit overwhelming, so lets break it down
You're pretty likely to see this creature alongside fellow payoffs like Zulaport CutthroatZulaport Cutthroat and Pitiless PlundererPitiless Plunderer, as well as paired with enablers like Deadly DisputeDeadly Dispute, Viscera SeerViscera Seer, and Chatterfang, Squirrel GeneralChatterfang, Squirrel General
3 Mickey Mouse: Brave Little Tailor As Disney's long-standing mascot, the mouse that started it all earns his seven distinct appearances in the First Chapter of Disney Lorcana
So the game plan is the same as the first two brews: our Plan A is Voltron killing
Make a good stuff control deck based on blacks big mana (looking at you, [casthaven]Cabal Coffers[/casthaven]), include stuff like [casthaven]Conjurers Closet[/casthaven], and then point your effect at the blue decks to see if you can grab a counterspell
You can continue drawing into more ways to do damage and subsequently get more impulsive draws