Sadly he doesnt benefit from his own effect, which would have softened the blow of paying six mana for a 3/3 somewhat, but that doesnt stop him from being a great top-end to an aggressive deck
I think Journey Into Nyx could possibly speed up Standard
However, the Shinra Company has monopolized mako production, and in doing so established a powerful hegemony, its influence reaching the far corners of the globe
This can be as big of a rout as Blasphemous Act with Fall of Cair Andros.
9 Animar, Soul of Elements An incredibly powerful commander in its own right, the only reason Animar, Soul of Elements, isn't higher on this list is due to the numerous colors in Animar's casting cost meaning that not all hypothetical hydra decks will be able to run Animar
All of these cards have been mainstays in multiple formats, and I think Pioneer could be yet another wonderful home for them