Bolshack, Forge Guardian

Flying, War cry (Whenever this creature attacks,
each other attacking creature gets +2/+0 until end of
turn.)
{r}{r}{r}{r}: Bolshack, Forge Guardian gets +2/+2
and haste until end of turn.
Whenever an Artifact enters the battlefield under
your control, Bolshack, Forge Guardian deals 3
damage to any target.