Ezuri's passive ability lets you draw a card whenever you proliferate, turning any spells and abilities that would add counters into cantrips
The Monsters Nezahal, Primal Tide as "Lagiacrus, Lord of the Seas" Drakuseth, Maw of Flames as "Rathalos, King of the Skies" Ziatora, the Incinerator as "Fatalis, the Black Dragon" Vaevictis Asmadi, the Dire as "Nergigante, Herald of Destruction" Sarulf, Realm Eater as "Zinogre, Lord of Lightning" These are, fittingly, absolute monsters expensive, huge creatures that could play really well as Commanders
I actually ordered them for the store
Limitations SCG doesnt buy absolutely everything
How Does It Work
Note that this doesnt care about who controlled the creatures that died, so you can throw a bunch of tokens into your Viscera Seer to set up a huge swing of card advantage