These cards work great with Aesi to make every land drop fill up the stack with triggered abilities
However, if both players are already at 7 cards, this becomes a lot weaker
Spelunking Spelunking is useful on far more than caves, and really only takes a land or two that would've entered untapped to be worth playing
Combine it with some Auras and Equipment like Rancor, Loxodon Warhammer, or Fireshrieker, and you could be one-hit killing your opponents with ease
Its pretty easy for this deck to start creating five copies of each Adventure spell once the setup has been achieved, and bouncing five permanents for just two mana is absolutely devastating
It was hard to tell what colors many cards were and the print was often difficult to read