Companion originally let you cast a single creature from your sideboard if you fit a specific condition, but its immense popularity across every format in the game led to decks needing a Companion to participate
In that case, Malleable Impostor simply enters the battlefield as a 0/0 creature and is probably put into your graveyard immediately, unless something else is increasing its toughness to keep it alive
In this brew I built a Zoo Commander deck and then rebuilt it into a Menagerie brew and Aquarium 60-card deck that was what I call the ''Extreme Theme" deck where you take a theme to its logical conclusion and only run cards in that theme even lands
Rograkh, Son of Rohgahh and Silas Renn, Seeker Adept Do not underestimate the zero cost Commander
Its attack trigger lets you draw a card for each attacking Dragon and then put any permanent from your hand directly onto the battlefield for free, creating an avalanche of value that is nearly impossible to come back from
While these abilities have their fans, theyve been largely criticized by the player base