You can search for Cast Out, discard it, sacrifice the Wall to bring it to your sweet hand, and then flash Cast Out and move on
Firdoch Core is a rare non-creature example of the same principle: not a particularly efficient mana rock, but one which may feel more playable to typal decks since it counts as a hit for Gathering Stone (another great Lorwyn Eclipsed uncommon) and similar effects
Actions and Items are two other card types in the Disney Lorcana TCG
Pairing this with the Captain America, Team Leader ability could lead to a seriously stacked board sooner rather than later, so expect to be an easy target for other players at the table.
It turns any green creature into your best possible green creature, which often ends up being Craterhoof Behemoth
What affects the value of Mountain