Deathwatch Tech Marine

Indestructible, Artifact spells you cast cost {3} less to cast.
When Deathwatch Tech Marine enters the battlefield, create three 0/1 Servo Skull creature tokens.
-Servo Skullcs you control have: "{t}Sacrifice: Regenerate target Artifact".
{p/c}:create a 0/1 Servo Skull creature tokens.