It is amazing against Hammertime, Rhinos or Hardened Scales, but these decks are not as popular now as they were a few months ago, and so I think its not the best time to be packing a lot of Engineered Explosives into the sideboards
I admit theres a pull towards Blast of Genius because Ill likely wheel either Laboratory Maniac or Living Lore, but I still think Wild Mongrel gets the nod due to efficiency and archetype flexibility
Like all sideboarding, hating Dredge (and any linear deck for that matter) must be done so within the context of a specific plan and your specific deck
If you somehow control two Felixes, a creature you control dealing combat damage to a player causes abilities of permanents you control to trigger three times
And that's before we get to the fact that it's almost impossible for blue decks to deal with the card
One of the best Dredge enablers for Vintage, as well as an overall great card for Reanimator decks