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
Sure, it will sometimes disrupt synergies or curving or value but that is not why you are playing it
This extra holiday release consists of four Scene Boxes, a new Chocobo Bundle, and a tweaked Commander deck
Learning about different sets, rarity, and artwork will arm you with the knowledge required to make informed purchasing decisions
(If a permanent with a stun counter would become untapped, remove one from it instead.) You may target a creature that is already tapped with Tranquilize