Tribal decks bring together creatures of a specific typelike dragons or zombiesfor synergistic power plays
Every turn you have a possibility of losing a life and drawing a card, and later in the game you can punish them really hard for not having cards in hand at all
These Gods play right into formats, metagames, and places that want cards like Genesis, Volrath's Stronghold, Academy Ruins, a lot of typical Planeswalkers like Sarkhan Unbroken, Ob Nixilis Reignited, or Nahiri, the Harbinger that have multiple avenues for card advantage and quality
There are some relatively inexpensive ones, starting with Angel of Finality, Angel of Jubilation, Archangel of Thune, Archangel of Tithes, and going all the way to Linvala, Keeper of Silence