There isnt a great way to fight it that doesnt feel bad: almost every viable removal spell in the format is more expensive than it, so youre essentially trading down on mana, and the Clue it produces allows the Inspector to replace itself
You cant just run Blasphemous Act or Wrath of God
That's why it's important to focus on pushing your mana curve down, with your ramp and interaction ideally being two to four mana cards, so that you can accelerate to your finishers and efficiently answer opposing threats
It is a Hero's Demise, a Clone or a Sculpting Steel, all of which are cards that often depend on what your opponent is doing
Sly Instigator For just and a tap, Sly Instigator makes an opponents creature unblockable and goads it
This is far too expensive, and its only good if you expect games to go really long