Tangleweave Armor

Mana cost: {2}{G}{G}
Type: Artifact — Equipment
Set: Phyrexia: All Will Be One Commander #26 (rare)
Price: $0.34 USD

Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)
Equipped creature gets +X/+X, where X is the greatest mana value among your commanders.
Equip {4}

Tangleweave Armor has 3 printings, first in Phyrexia: All Will Be One Commander (2023). EDHREC ranks it #11,345 among Commander cards. It appears most in Ghalta, Primal Hunger decks (5,781 on EDHREC). 1 public deck on TCG runs it. It has 5 official rulings.

Legality

commander: legal
legacy: legal
vintage: legal
pauper: not legal
modern: not legal
pioneer: not legal
standard: not legal
brawl: not legal

Public decks that run Tangleweave Armor

Tramplesaurus Rex - Foundations Commander, led by Ghalta, Primal Hunger

Commanders that run Tangleweave Armor most

Deck counts from EDHREC.

Often played with Tangleweave Armor

Cards that show up in the same decks on EDHREC.

Rulings

2023-02-04: Like other Equipment, each Equipment with living weapon has an equip cost. You can pay this cost to attach an Equipment to another creature you control. Once the Germ token is no longer equipped, it will be put into your graveyard and subsequently cease to exist, unless another effect raises its toughness above 0.
2023-02-04: If the Germ token is destroyed, the Equipment remains on the battlefield as with any other Equipment.
2023-02-04: 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.
2023-02-04: 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.
2023-02-04: 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.)