If youre using Mobilize, especially if youre using Mobilize in a colour other than red, what youre going to want to do is make sure that the setting has some form of extremely convenient, numerous, low power red mercenaries, but they dont have to be, like, humans
Wickerwing Effigy is a card that seems pretty medium at face value, But im sure that theres some kind of Enter the Battlefield or Attack trigger that you could abuse this with in some fashion
For example, if the exiled card is a land card, you may play it only during your main phase while the stack is empty
And you gain 2 life as a bonus, which makes a difference in tight races
Single Combat Single Combat is an excellent board wipe for Voltron decks that make a single, large creature
Outside the recommended cards, look for red and white staples to protect your growing army of creatures and enable extra attack steps