Cavernous Maw | Land | Cave | {T}: Add {C}.
{2}: Cavernous Maw becomes a 3/3 Elemental creature until end of turn. It's still a Cave land. Activate only if the number of other Caves you control plus the number of Cave cards in your graveyard is three or greater. | Alfven Ato
2.0 LSV
Forgotten Monument | Land | Cave | {T}: Add {C}.
Other Caves you control have "{T}, Pay 1 life: Add one mana of any color." | Logan Feliciano
2.0 LSV
Pit of Offerings | Land | Cave | Pit of Offerings enters the battlefield tapped.
When Pit of Offerings enters the battlefield, exile up to three target cards from graveyards.
{T}: Add {C}.
{T}: Add one mana of any of the exiled cards' colors. | Martin de Diego Sádaba
2.5 LSV
Volatile Fault | Land | Cave | {T}: Add {C}.
{1}, {T}, Sacrifice Volatile Fault: Destroy target nonbasic land an opponent controls. That player may search their library for a basic land card, put it onto the battlefield, then shuffle. You create a Treasure token. | Andrew Mar
0.0 LSV