Reinforcing Commander

When Reinforcing Commander enters the Battlefield, create a 2/2 colorless army creature token with "When this creature dies, create X 1/1 soldier tokens, where X is the creature's toughness minus 1." Whenever Reinforcing Commander attacks, Amas 1.
If you Control Legion Commander, Support Commander, Mage Commander, Brutal Commander, and Reinforcing Commander, their base power and toughness each become 5/5 and gain Indestructible.