Decks built around this commander usually have synergies with card draw or win conditions like Laboratory Maniac and Thassa's Oracle
Card advantage one turn, then pumps your creatures the next two turns
The four mana is a lot but having flash goes a really long way to solving this, it makes him playable in control and slower decks and makes it far easier to get lots of value from
As mentioned above, each deck must have one or two ink types, and each ink type offers a different style of play
With a nice box, plenty of Set boosters, and even four promo cards that make up a scene of Mount Doom, if you're not wanting to splash on a whole box, a bundle is a great alternative
Both of these deal noncombat damage for drawing cards, meaning that if you start the chain