Early Prices From Japan The English set is not out yet, but Japan's Abyss Eye has been live long enough to show what demand looks like: Mega Darkrai Mega Hyper Rare: around $600
Nissa is a far better blocker than either in that sense because you will happily trade it with a 2/1 if you need to
They even have their own Field Spell that lets you pay the cost of these effects by sending useful cards from your Deck to the Graveyard, making them better than free
If you have two votes for each, you'll get four Treasures and two +1/+1 counters on each creature, and that's not bad at all
With a $3.08 market price over on TCGplayer marketplace, this card is by no means sought after and very easy to pull which gives it a lower rank, but its an eye-catching one to have in the collection nonetheless
A quick check of the blue shade, Poke Ball gradient, and border consistency catches most fakes in seconds