sliver foundry

All Slivers have "Sacrifice this permanent: Add ."

Equipped creature gets +1/+2. Equip Whenever a 1/1 creature you control enters, you may return this card from your graveyard to the battlefield, then attach it to that creature.

As this enchantment enters, choose a creature type. Each creature you control is the chosen type in addition to its other types.

, Sacrifice a nontoken artifact: Create a 1/1 blue Thopter artifact creature token with flying. You gain 1 life.