Even the cheaper cards, like Kyurem ex 160/086 at $10.93, or Snivy and Pansage, both hovering around $20, are drawing in early collectors looking to complete those secret rare numbers before the English release
If a creature has +1/+1 counters and -1/-1 counters on it, state-based actions remove the same number of each so that it has only one kind of those counters on it
In Standard and Pioneer, Dryads abilities will make reaching Niv-Mizzet Reborn even more trivial, while the statline makes it a more respectable blocker than youd usually get out of a combo piece
You can also set up all of the damage but not challenge, then shift Robin Hood Sneaky Sleuth on top for good lore gain
Id highly recommend checking out the rest of the set for some specific upgrades to your decks, as there are some very interesting narrow designs in this set, especially for Lorehold