The Necrobloom

A landfall ability triggers whenever a land you control enters for any reason. It triggers whenever you play a land, as well as whenever a spell or ability puts a land onto the battlefield under your control.

Whenever a land you control enters, each landfall ability of the permanents you control will trigger. You can put them   on the stack in any order. The last ability you put on the stack will be the first one to resolve (As a result, you can have those abilities resolve in the order of your choosing.).

A landfall ability doesn't trigger if a permanent already on the battlefield becomes a land.

If you control multiple lands with the same name, only one of those lands will count toward the seven or more required to create a Zombie. For example, if you control four lands named Forest, two named Plains, and one named Swamp, you control three lands with different names.

You can't attempt to use a dredge ability if you don't have enough cards in your library.

If multiple lands enter the battlefield under your control simultaneously, all of those lands are counted. For example, if you sacrifice seven lands while resolving Scapeshift and search your library for seven lands with different names, you'll create seven Zombie tokens.