His Lucky Dime is a usable item, and it's quickly found a home among many decks for its lore-boosting capacity
This includes cards in hand, cards in the graveyard, and exiled cards
Further Reading: Speculating on the Commander Banlist
(-8 Loyalty: Target opponent gets an emblem with "Whenever a player draws a card, you lose 2 life."): Not ultimate enough, but it is a solid emblem that can win the game, only it needs help
Marath can put +1/+1 counters on itself, so cards like Hardened Scales and Doubling Season allow you to remove counters from Marath and gain more back
There arent actually that many great +1/+1 counter cards with Abzan colors, though, so it relies pretty heavily on 1- and 2-color cards to flesh out this part of its identity