Its an extremely potent enabler for the deck, and a great general Commander pick-up in any case
This takes a great effect to ultra-effective levels and can literally pile onto pain your opponents already feel when you use the +1 ability on Grist, the Hunger Tide, trigger Sphinx's Tutelage, or drop a Cultivator Colossus into play
The rest of the deck is your typical Selesnya Enchantress deck: we've got protection and tutoring with Sterling Grove, ramp with Sanctum Weaver, draw and a threat with Sage's Reverie, and mass recursion with Mantle of the Ancients
Its a pretty nice way to help with progression because sometimes playing with starter decks feels extremely limiting
There are many different types, from Equipment like swords and shields that you can outfit your Creatures with, to MTG Vehicles that can become Creatures when they are crewed