If the result of the roll is somehow less than 1 or greater than 20, the original spell or ability doesn't see heads nor tails (you'll have to read the effect carefully then to determine what happens)
That is so long as you have sensibly built up a board, at least
Who Makes the EDH Rules
at this point players are probably already more experienced or want to start tracking spells digitally due to the sheer number they have anyways
This isn't an Atraxa-level threat that'll put you way ahead of your opponents, not in Commander at least, but clearing the three best creatures off the board for the price of an Animate Dead is certainly a good enough deal

(2013) SpyNet (2016) Mindbug (2021) Creature Feature (2022) Collectible card games: Magic: The Gathering (1993) Vampire: The Eternal Struggle (1994) Netrunner (1996) BattleTech (1996) Hercules: The Legendary Journeys (1998) Xena: Warrior Princess (1998) C-23 (1998) Star Wars Trading Card Game (2002) MetaZoo (2025 relaunch) Board games: RoboRally (1994) Filthy Rich (1998) Pecking Order (2006) Rocketville (2006) Stonehenge (2007) King of Tokyo (2011) and spinoffs: King of New York (2014) King of Monster Island (2022) King of Tokyo Duel (2024) Treasure Hunter (2015) Bunny Kingdom (2017) The Hunger (2021) Founders of Reyvick (2024) Magical Athlete (2025) Other games: Spectromancer (2008), online card game Schizoid (2008), console action game Kard Combat (2011), iOS Game SolForge (2012), online digital card game Artifact (2018), digital trading card game KeyForge (2018), unique deck game Half Truth (2019), trivia board game co-created with Ken Jennings Carnival of Monsters [22] (2019), Kickstarted (failed) and eventually released through AMIGO Games Roguebook (2021), roguelike deck-building game Dungeons, Dice & Danger (2022), roll-and-write game Chaos Agents (2024), an auto-battler royale released through Garfields game lab, Popularium Vanguard Exiles (2025), a two-player, competitive auto-battler game released on Steam References [edit] "Magic: The Gathering Fact Sheet" (PDF)
