I dont run either one in most of my control decks, and if your general lacks an activated ability or a strong offensive capacity, then theyre probably not that impressive
Sapphire Medallion can be particularly strong in multiples, building towards a Capsize-lock endgame (bouncing two or more lands a turn on their end step to keep forward progress going without risking anything)
Thankfully, there is plenty of Food support in MTG, and this card can do work as a Secret Commander
Each Pokmon has its own Weaknesses and Resistances shown on the bottom of the card
I wont pretend to be hyper-familiar with Brawl as a format because Im more of a magpie/physical collector type, but Crucias is here if you want it
Given its wide range of utility, it isnt surprising that Zacama is a popular choice for a commander