{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.
Each land is a Forest in addition to its other land types.
Botanical Sanctum enters tapped unless you control two or fewer other lands. {T}: Add {G} or {U}.
({T}: Add {U}.) Mystic Sanctuary enters tapped unless you control three or more other Islands. When Mystic Sanctuary enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.
Impending 4—{1}{G}{G} (If you cast this spell for its impending cost, it enters with four time counters and isn't a creature until the last is removed. At the beginning of your end step, remove a time counter from it.) Whenever Overlord of the Hauntwoods enters or attacks, create a tapped colorless land token named Everywhere that is every basic land type.
Landfall — Whenever a land you control enters, add one mana of any color. Then if this is the second time this ability has resolved this turn, reveal cards from the top of your library until you reveal an Elf or Elemental card. Put that card into your hand and the rest on the bottom of your library in a random order.