Disney Lorcana also fully revealed Fableds set list weeks in advance so that players knew exactly which cards are legal moving forward
We then had one card, Monument to Perfection, mechanically reference them
Unlike many ramp effects, it can grab any Forest, not just Basic ones - allowing it to dig up certain dual- and tri-lands - and still leaves behind a creature, albeit a small one
What would players expect
4 There are, of course, other peaks, corresponding to other sets of design goals and cube architectures for example, a Vintage cube that supports Splinter Twin and Channel combos will have a different peak than a cube that has identical restrictions, but does not support combo
But it is definitely playable within certain decks that like draining the opponents life