core set 2015 booster box MTG Magic the Gathering Card Game M15 Manufacturer-Sealed Pack the latest Magic Magic The Gathering: Core Set

As a defensive card, it also shines: keep your guys from dying to removal, or reuse a comes-into-play creature

Other Field Spells have effects that can be activated by either player during their turn, like Chicken Game

Trishula is particularly impressive due to how many threats it can deal with at once

Imagine knowing a play your opponent is going to make, but not having a DM on the field

Considering the recency bias that could come into play here, more modern formats from the past few years wont take a place on this list

Life Loss and Rad Counters Drain opponents over time, reflecting the slow, dangerous spread of radiation