11 cards where (the text includes “as” and the text includes “enters” and the text includes “reveal” and the text includes “or”) and the card types include “land” and it’s legal in Pioneer and the rarity is equal to rare

Choked Estuary (Murders at Karlov Manor Commander #254)
Foreboding Ruins (The Lost Caverns of Ixalan Commander #330)
Fortified Beachhead (The Brothers' War #262)
Fortified Village (Murders at Karlov Manor Commander #262)
Frostboil Snarl (Outlaws of Thunder Junction Commander #298)
Furycalm Snarl (Murders at Karlov Manor Commander #263)
Game Trail (Murders at Karlov Manor Commander #264)
Necroblossom Snarl (Commander Masters #1015)
Port Town (Commander Masters #1019)
Shineshadow Snarl (The Lost Caverns of Ixalan Commander #351)
Vineglimmer Snarl (The Lost Caverns of Ixalan Commander #368)

This search is finished. Now the real work can begin.