You use a deck of 100 cards led by a legendary creature, your Commander
Protect the chosen damage source before committing Jeskas ability
Bident of Thassa, Coastal Piracy, and Reconnaissance Mission all reward you for every creature that connects with combat damage
Even without all of these block mechanics, filtering through your deck (card drawing) for free each turn is very powerful, but combined with the nature of the block, it put the Looter way over the top
At the front of the deck are the pairings of the Tenth Doctor and Rose Tyler, working together to keep the timeline intact while helping you cast supremely powerful spells for free
This ability alone will likely make Ozai playable in some lists, particularly those that lean heavily on infinite mana combos