Well, Cabal Coffers and Nykthos, Shrine to Nyx should be on your shortlist
Many customers printing proxies, Commander cards, cubes, or custom tokens specifically want the finished cards to feel as close as possible to standard MTG products once sleeved and played
As a 7/7 with trample, its already a nightmare to block, but the enters-the-battlefield trigger is what truly breaks the game open
And we snuck in some pricey pieces to get seasoned Magic players to crack their wallets, with Ancient Gold DragonAncient Gold Dragon, BloodthirsterBloodthirster, Balefire DragonBalefire Dragon, Vilis, Broker of BloodVilis, Broker of Blood, and Flawless ManeuverFlawless Maneuver
Another creature that harmonizes well with the idea of the deck would be the Esper Sentinel, which can generate a good supply of hand cards
For more, check out The Art of Magic: Ixalan