History : The card was given to participants of the 2010 World Championships in Hawaii as a prize for their dedication
Its going to take some work, but he goes into great detail on the strategy here
Adding a sacrifice outlet to your mana base makes it much stronger than it would be if it was just lands that tapped for mana, especially considering how hard it is for your opponent to interact with it
Lock the door and eat the key. Vraan, Executioner Thane Illustrated by Donato Giancola Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
For some reason, Optimus Primes Bolster ability isnt restricted to Artifact Creatures (unlike many of the other Transformers here), meaning he is much more useful in regular Commander decks and not one specifically built around Artifacts
While I dont think you need to go all-in on the Ripjaw, its worth taking a crack at it, just to see, you know