This card has two moves that are actually good moves, you could have 1 or 2 of these Sneasel cards in your deck, try and get one into the active Pokemon spot to start the game, put the defending Pokemon to sleep the first turn by using Icy Wind, then set up your benched Pokemon while the defending Pokemon is asleep
Japanese SAR cards range from approximately $50 for less popular Pokemon to $800+ for flagship chase cards like Charizard ex SAR from SV3 or Nanjamo SAR from SV2a 151
What makes this card the most valuable in the cycle is that it allows you to free up sideboard slots
Yes you can double sleeve MTG cards
Purrely, with their cosmic kitten aesthetic and generally high levels of adorableness are up there with some of the cutest card designs ever introduced to the game
Boartusk Liege gives +1/+1 each to mono-green and mono-red creatures, and +2/+2 to RG+ creatures