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
Its nice that we can affect the board and the graveyard at the same time, and its a wrath that Commander mill players should definitely include if theyre not mono-blue
It plays in a similar space to sacrifice, with the upside of providing red mana if you need it
For current MEGA era sealed boxes, the pre-May window offers the last chance at the 5,400 MSRP tier
Beyond that, Energy acceleration is usually good
Im not really sure what the flavor is behind the carddraining life makes sense, and blue mana drawing cards makes sense independently of thatbut sometimes, you just gotta enjoy a huge swing in a card