Even on its own outside of a Pirate deck you still have a two mana creature that can flash in and block an opposing attacker, acting like a removal spell that pairs favorably with all of the ways to reanimate creatures in Standard
Boompile - A 50/50 Wrath Effect
Are Draft Booster Boxes Worth It in General
Shatterskull Smashing and Valakut Awakening are the best of the bunch
While there is now some discussion over the best Bob, given that we now have Dark ConfidantDark Confidant, Keen DuelistKeen Duelist, and the newly minted Caustic BroncoCaustic Bronco, there's no question that this deck and many others like it will want several of them
Sacrificing Black Lotus for (G)(G)(G), casting Channel, Then paying 19 life into Channel to generate 19 colourless mana