The number of creatures in your party is how many of those roles you can fill with a creature you control
Instead of just one Commander card, you can have two as long as the card has Partner. Combine Leonardo and Donatello to create a token +1/+1 counter engine that will make everyone else at the table lose their minds as you try to keep track of your board
they remain in effect as long as the Pokmon with the Ability remains in play
One of the cards with the most potential from the deck is Displaced Dinosaurs, which turns your historic cards into massive 7/7 creatures that keep all their original characteristics which can turn your Treasure tokens into massive beasts
This ability will be able to trigger with frequency due to his vigilance ability
On the front side she makes sure you hit a land drop, and then when you transform her into Roar of the Fifth People, you generate two dinosaurs, then all of your creature turn into mana, then she tutors up a dinosaur, and she finishes things off by giving them all double strike and trample