If the squids triggered upon leaving the battlefield instead of at death, Id say that it might compete with True-Name Nemesis in Legacy
Miserys Shadow Denying death triggers can be a powerful tool and if youre someone who already plays Dauthi Voidwalker, Leyline of the Void or Valentin, Dean of the Vein then make sure to pick up a Miserys Shadow
These cards might actually be the most important rare and mythic reprints in Eternal Masters because they allow people to get into formats like Commander and Cube by providing important pieces like Control Magic, Maze of Ith, and Sylvan Library
Also, nobody is every doing anything close to fair with this card, so its even better thank it seems
Use this in aggressive decks to resolve your win condition before the cumulative coin-flip damage matters
Cards like Dragon Fire and Be Prepared help control the board