My guess is it's a random speculative buyout, with someone(s) betting that the cheap extra turn effect is under-priced at $2 and/or will be broken and in demand at some point in the future (unlike today where it sees play in 1% of Commander decks according to EDHRec)
[4] Description[] Dungeons are like Planes and Conspiracies during the game
The Future Sight ability to play lands or birds off the top of your library is my favorite kind of card advantage, then there are simply so many landfall and bird triggered effects to double up on, things get wild fast from this Final Fantasy headliner
City of Traitors ($541) City of Traitors is a version of fast mana, that allows early ramp to race out a Blood Moon or other key 3-drop
The reason Forest of Giant Plants was banned was due to the speed at which it allowed more powerful Grass-type Pokmon to enter the field
He's explosive, flashy, and deceptively synergistic