mtg card invoke prejudice then distribute four +1/+1 counters among any number of creatures and/or Vehicles target player controls. Can Invoke Prejudice fit in

That's the full process

If at any point, you control more creatures that you have gained control of using this creatures first ability than there are creatures named Mind Slaver on the battlefield, return one of those creatures of your choice to its owners control, and continue returning those creatures until the number of creatures you control that you gained control of using this creature is equal or less to the number of creatures named Mind Flayer on the battlefield

What are the commander staples that almost every deck should run

So glad I tune that stuff out

This says nothing of the incredible success and popularity of the Final Fantasy set