They can choose to put two +1/+1 counters on a creature they control at the beginning of your turn to make it larger, but if they do, they wont be able to attack you until your next turn
Retailers like TCGplayer, Card Kingdom, or even Amazon tend to list these special versions under the cards name, so you can search for something like Doubling Season anime art or Smothering Tithe anime version and see whats available
Please consider this as a playable item to avoid problems
You can expend these to create Flying Nalaar Aetherjet Token with Power and Toughness equal to the amount of Energy you expend
With Sliver Overlord at the helm, your festive swarm of slivers will work together like Santas elves, delivering powerful synergy and endless fun
When we sacrifice a Zombie token, Wilhelt will give us another