Nettlecyst

Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)
Equipped creature gets +1/+1 for each artifact and/or enchantment you control.
Equip {2}

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Murders at Karlov Manor Commander

Living weapon (When this Equipment enters the battlefield, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)
Equipped creature gets +1/+1 for each artifact and/or enchantment you control.
Equip {2}

March of the Machine Commander

Jumpstart: Historic Horizons

Modern Horizons 2

If a permanent you control is both an artifact and an enchantment, count it only once when determining the bonus from an equipped Nettlecyst.

If the Phyrexian Germ token is destroyed, the Equipment remains on the battlefield as with any other Equipment.

If the living weapon trigger causes two Phyrexian 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.

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 Phyrexian 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.

The Phyrexian 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.

The living weapon ability has been updated so that the triggered ability creates Phyrexian Germ tokens rather than Germ tokens. This update applies to all cards with living weapon.