Leyline of Transformation I know Magic players whose entire personality is trying to pull off some strange combo with type-changing effects like Maskwood Nexus or Arcane Adaptation
I think all the new summons are incredible in general not just in a Counters deck, I think Summon: Yojimbo and Summon: Valefor will be showing up in a bunch of future brews
While the set was solid from a competitive standpoint, it lacks a little from a collector's point of view, though the Tyranitar V alternate art card has topped over $100, which would be a great pull
Commander damage is one of the primary win conditions of this deck
Omastar Fantastical Parade #212 Card Type Pokmon Element Water Stage Stage 2 HP 140 Weakness Lightning Retreat Cost 2 Evolves From Omanyte Pokmon Omastar Artist Ancient Whirlpool 70 During your opponent's next turn, the Defending Pokmon can't attack
This gives a fairly straight-forward play style that would work well for newer players