Field of Ruin and other land destruction effects are great for breaking up powerful land combos like Tron or Valakut, the Molten Pinnacle setups before they go off
Sagas in Sigurd's colors that work especially well with this effect include Elspeth Conquers Death, Fable of the Mirror-Breaker, and There And Back Again
OP09-019 Nobody Hurts a Friend of Mine
With truly mesmerizing artwork and set design, Urzas block is a style standout, and is likely one of the best sets of all time simply from a gameplay standpoint (broken artifact-based combo decks notwithstanding)
Essential protective accessories like card sleeves are crucial for safeguarding your cards from damage during gameplay and storage
This means c with Undying all combo really well with cards that put -1/-1 counters on them, because (somewhat counterintuitively) +1/+1 counters and -1/-1 counters cancel each other out