Baldur's Gate Wilderness is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Crash Landing — Search your library for a basic land card, reveal it, put it into your hand, then shuffle. Goblin Camp — Create a Treasure token. Emerald Grove — Create a 2/2 white Knight creature token. Auntie's Teahouse — Scry 3. Defiled Temple — You may sacrifice a permanent. If you do, draw a card. Mountain Pass — You may put a land card from your hand onto the battlefield. Ebonlake Grotto — Create two 1/1 blue Faerie Dragon creature tokens with flying. Grymforge — For each opponent, goad up to one target creature that player controls. Githyanki Crèche — Distribute three +1/+1 counters among up to three target creatures you control. Last Light Inn — Draw two cards. Reithwin Tollhouse — Roll 2d4 and create that many Treasure tokens. Moonrise Towers — Instant and sorcery spells you cast this turn cost less to cast. Gauntlet of Shar — Each opponent loses 5 life. Balthazar's Lab — Return up to two target creature cards from your graveyard to your hand. Circus of the Last Days — Create a token that's a copy of one of your commanders, except it's not legendary. Undercity Ruins — Create three 4/1 black Skeleton creature tokens with menace. Steel Watch Foundry — You get an emblem with "Creatures you control get +2/+2 and have trample." Ansur's Sanctum — Reveal the top four cards of your library and put them into your hand. Each opponent loses life equal to those cards' total mana value. Temple of Bhaal — Creatures your opponents control get -5/-5 until end of turn.