Something else unique with this plane is that anyone who sets foot in it will turn into a creature befitting the plane
If you exile only one nonland card with mana value 4 or less, you'll have the option to cast it
Also of note is the penalty for losing: If your Mega faints, your opponent will get 3 point, instantly winning the match
Japanese Pokmon cards often hold higher value because several concrete factors work together
It will take 4 turns to get there, and while he can protect himself to some extent, hes not so good at it that it will be easy to make that happen
As for the cards we did get, Noose Constrictor is a justifiable choice considering its pedigree (as the second coming of former Standard all-star Wild Mongrel), but Fortune's Favor was mostly dismissed as soon as it was spoiled by a large part of the player base