I have come to like pairing it with Show and Tell plus Emrakul as they both just work quite well in the deck
Of all the D&D bonus cards revealed so far, this is easily the most exciting from a multi-format perspective
Then for the activated ability, to permanently take a +1/+1 counter, shield counter, or first strike counter from an opponent is simply a steal
From commanders like Astarion, the Decadent and Blitzwing, Cruel Tormentor, enablers like Wound Reflection, to the various Sanguine Bond/Exquisite Blood style loops now available, Shredder is a must-block
It's a great start but it could be better
Sweetening the pot and encouraging them to swing another way, theyll be able to draw a card if they choose to swing at someone who has a poison counter