I need the net ionic equation for Ba+FeCl3.

I don't know what you're working on but I suspect you've picked a poor example. Why? Because Ba metal (a solid) reacts with water and water is the solvent for the FeCl3.

What REALLY happens is the Ba reacts with water as follows:
Ba + 2H2O ==> Ba(OH)2 + H2 for which the net ionic equation follows.
Ba(s) + 2H2O(l) ==> Ba(OH)2(s) + H2(g)
I suspect you or the professor is trying to illustrate the single replacement reaction. Let me give an example but use Al as the metal instead of Ba.
Al(s) + FeCl3(aq) ==> AlCl3(aq) + Fe(s)--molecular equation.
Al(s) + Fe^3+(aq) + 3Cl^-(aq) ==>Al^3+(aq) + 3Cl^-(aq) + Fe(s) --ionic equation.
Al(s) + Fe^3+(aq) ==> Al^3+(aq) + Fe(s) ---NET ionic equation.