Well, thats an incredibly difficult question to answer, so lets take a look at the different versions of Collected Company decks and their strengths and weaknesses to try to find the answer
[a] Each player must also denote a legendary creature to be their Commander, which is able to be played at any time, without needing to draw it
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Rootha, Mastering the Moment Rootha, Mastering the Moment feels like a commander version of Manaform Hellkite, and heck, why not load them up in the same deck
An un-interactable effect thats constantly online the entire game may as well just be a rules change in your favor
There will be a chunk of Paldean Pokmon making their debut - bringing fresh deck-crafting opportunities and winning strategies