With Phenax out (and he will probably stay out most of the time, at least in enchantment form, thanks to the built-in indestructibility), Horseshoe Crab just reads U: Target player mills three cards. That can stack up over time, and many opponents are going to feel pretty silly sending a Swords to Plowshares at your lowly Horseshoe Crab, so they probably just wont
The emphasis on the Shire and Biblo Baggins here suggests that Wizards could be prepping a new set of Magic cards inspired by The Hobbit
With Chansey and Zapdos following close behind, and the next card owning the smallest lead possible, Hitmonchan has plenty of cards to fend off to keep its placement
1Rogue's Passage
The increasing number of turns in a Pokmon TCG battle only increases the likelihood that one's opponent will be able to successfully evolve their monster before the player
However, having to discard three cards at random can really hurt