Tinkerer, Artillery Specialist

Artificer's Heart-Whenever you cast an Artifact, Instant or Sorcery spell add {e}{e}.
{w}{r}{t}: Create a Legendary Artifact Creature
called "Arcane Turret". It enters the battlefield
as a 2/3 with "{e}{r}: This creature deals 3
damage to any target." a 1/3 with "{e}{e}{r}: This creature deals 2 damage to up to three target creatures." or a 0/4 with "{e}{w}: You gain 3 life."