Tangleweave Armor

It doesn't matter where your commander is (or commanders are, if you have more than one because of the partner ability or similar). The bonus will be calculated using your commander's current characteristics. (Mana value typically doesn't change, but your commander may become a copy of something else.)

The Germ token enters the battlefield as a 0/0 creature and the Equipment becomes attached to it before state-based actions would cause the token to die. Abilities that trigger as the token enters the battlefield see that a 0/0 creature entered the battlefield.

If the living weapon trigger causes two Germs to be created (due to an effect such as that of Doubling Season), the Equipment becomes attached to one of them. The other will be put into your graveyard and subsequently cease to exist, unless another effect raises its toughness above 0.