It especially shines in aggressive decks that are happiest to see it come down on turn 2, but it'll be great in any deck
While Snow Mercy only gives those creatures counters, you can use Snow Mercy to tab down those creatures, and the fun part here comes with how you activated that ability because you have to tap, then untap, then tap, then untap, then tap Snow Mercy
Legendary Creature Tiefling Warlock Mythic Yongjae Choi 1/4 NOT LEGAL Standard NOT LEGAL Future LEGAL Historic LEGAL Timeless LEGAL Gladiator NOT LEGAL Pioneer NOT LEGAL Explorer NOT LEGAL Modern LEGAL Legacy NOT LEGAL Pauper LEGAL Vintage NOT LEGAL Penny LEGAL Commander LEGAL Oathbreaker NOT LEGAL Standardbrawl LEGAL Brawl NOT LEGAL Alchemy NOT LEGAL Pauper Commander LEGAL Duel NOT LEGAL Oldschool NOT LEGAL Premodern NOT LEGAL Predh Deathtouch Mystic Arcanum At the beginning of your end step, exile the top card of your library
Since we usually have a flicker effect at our disposal, we can typically bypass the need to hardcast these creatures, however, there will be rare occurences where we may need to use Prophetic Prism to fix our mana and simply cast our oddly colored threats
It might not fit in the average cast-from-exile deck, but the ones that support it will go off like fireworks
Thats clues, treasures, food she turns the lot into mana