Ok Option 1 it is. Here is the unit's attacks--
Pick Up/Throw Proj (Primary)
Dagger Stab (Primary Short Range [Double-click])
Ghol Head Motolovs (Primary Long Range)
Satchel Charge (Special Short Range mana)
Dwarven Artillery Signal Grenade (Special Long Range ammo x3 [Artifact])
I made it possible that you can place satchel charges while still having the Dwarven Artillery Signal Grenades. Click 'T' close to the Dwarf and it goes and drops a satchel charge.... click 'T' farther than the Dwarf and it throws a Dwarven Artillery Signal Grenade. While you have the artifact with you... you can not pick up other projectiles or use your Dagger Stab or Ghol Head Motolovs. If you attack your unit will throw the artifact then you will be able to stab and throw Ghol Heads... you can pick up the artifact again if you threw it. I am going to give the artifact a local projectile group of smoke so you can find it easier.
-Pyro