You can expend a use of your XPHB to cast Meld into Stone, Passwall, or Stone Shape without a spell slot.
City Shape
Raw data
{
"name": "City Shape",
"level": 3,
"__prop": "subclassFeature",
"source": "ValdaPlayerPack2",
"entries": [
"You can expend a use of your {@classFeature Wild Shape|Druid|XPHB|2} to cast {@spell Meld into Stone|XPHB}, {@spell Passwall|XPHB}, or {@spell Stone Shape|XPHB} without a spell slot."
],
"className": "Druid",
"classSource": "XPHB",
"subclassSource": "ValdaPlayerPack2",
"subclassShortName": "City"
}