mtg zacama primal calamity commander deck Zacama, Zacama, Primal Calamity Magic the

you can also cast it from your graveyard for its Flashback cost of four generic and one red mana, exiling it

Archmage of Runes solves this nicely, allowing you to just play ritual style cards to generate increasing amounts of mana while having enough remaining cards to keep playing them

Incorporate infinite hand size spells including Nyssa of TrakenReliquary Tower, and Spellbook

There are also a wide range of helpful Artifacts, including Equipment, Vehicles, or just general support ones like Lunatic Pandora which can be used to destroy one of your opponent's cards

You wont even need to go to combat

Even then, they cant be too upsetit does technically resolve, after all