Cards can be purchased with real world currency, using gems or in-game currency (which can also buy access to matches in MTG Arena)
What I particularly like is opponents who forget that the tapped Soul of the Harvest can be flickered and return to the battlefield in an instant, drawing us a card, and entering the battlefield untapped, allowing us to surprise block with what everyone else will see as a way to get through attacks
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It creates a creature, it pumps up the board, and then it still gives you card advantage
A small number of Vanguard cards are walkers
The card itself reflects this more thoughtful depiction, with ability Its Better This Way presenting two possible effects depending on Beast, Tragic Heros state at the start of each fo your turns