In a nutshell, cards in your deck have three roles: Pokmon will fight for you, Trainers allow you to do a lot of stuff, and Energy is used to fuel attacks
Pirate decks will be pleased to see Edward Kenway spoiled in the Grixis archetype
It only costs one mana to summon it to the field, and each turn, it can exile cards from either graveyard for an effect
Unfortunately, some players are super, super rigid and if told not to do something or fail at reading the room, will simply do whatever they want (in casual Commander)
Finally, Vito meets his god, a starved but mighty brown bat shackled by golden chains inlaid with pink crystals
Its also simple to set up infinite loops using this, Ghostly Flicker, and any number of Archaeomancer variants