Wonder (Odyssey/Torment/Judgment) Odyssey Block dealt heavily in the graveyard, between threshold, flashback, madness (discarding cards) and the Judgment Incarnations
Once you do, any time you attack, you can deal 100 damage to any creature
But I think the problem with this creature lies in that you have to give up other nonland permanents, which will be hard to come by if youre already a token deck
Prince Eric, Expert Helmsman is nice and mobile as well, acting as a quester that your opponent will hesitate to get rid of if youre in a position of control, or as a more aggressive banisher when you need to deal with your opponent
Theres potent synergy there with cards like Dying to Serve, Drake Haven, and Cryptcaller Chariot that make tokens when you discard cards, allowing you to discard more cards next combat