I really wanted that effect and I think it worked out in the end
Giving you a choice between making a 2/2 cat beast token and giving your creatures a +1/+1 counter and vigilance for a turn, upon Landfall, Felidar Retreat is always useful for as long as it sticks around
The cards ideally wanted to have a two-color color identity, but most of the Jumpstart boosters were monocolor
Also just a combo piece to win the game, if your combo has some kind of life gain attached
Much like the traditional Pokemon games, this mythical Pokemon isnt easily obtained through normal means
If youre playing your deck right, you probably get at most three triggers from Land Tax before you end up ahead on lands (either from ramping, or from others missing land drops)