Venom, Alien Symbiote

{b}: Venom gets +1/+1 until end of turn.
{b}{b}: Attach Venom to target creature you control. Use this ability only as a sorcery. As long Venom is attached, it becomes an "Artefact - Equipment with Equip {b}{b} and equipped creature gets +2/+2 and has {b}: Equiped creature gets +1/+1 until end
of turn."