It has relevant protection to survive the best spot removal out there, and while its on the battlefield, Animar grows and makes your creature spells cheaper
Spellshaping: Bog Witch, Call the Bloodline, Firefright Mage, Greel, Mind Raker, Latulla, Keldon Overseer, Pack Rat, Putrid Imp, Vampire Hounds Traditional spellshapers from Masques block are creatures that allow you to discard cards for a specific spell-like effect, for example Dark Ritual, a red-aligned Shriek of Dread, or Fireball
I dont hold that against the deck itself, but just note that you might actually not be getting your moneys worth here unless the price drops significantly
Sprouting Thrinax
The goal of the deck is to cast and keep smashing with Skullbriar, collecting a variety of counters that stick around as we recast him and eventually take out opponents
309.4c Each room has a triggered ability called a room ability whose effect is printed on the card