That means if you are casting your mill win cons against a graveyard literate deck, which is very common in Commander and other kitchen table formats, that the milled stuff won't hit the graveyard or trigger their Syr Konrad, the Grim
When a creature is put into an opponent's graveyard from the battlefield, if Bridge from Below is in your graveyard, exile Bridge from Below
7 Magmortar Making Your Opponents Turn Worse Magmortars Smoke Bomb can be pretty disruptive if you can get it out early enough
In casual games or booster draft, that sacrifice is deceptively easy to do, but the same may not be true in Commander, where decks have a much lower density of legendary creatures and artifacts
Shared Tutor Effects (Scheming Symmetry, Wishclaw Talisman) Tutors like Scheming Symmetry and Wishclaw Talisman are the first tutors to really explore the design space of tutoring for what you want, but allowing an opponent to do the same in exchange