Question about isochron scepter
If I imprint a lightning bolt on an isochron scepter can I then kill a silver knight (protection from red), this being that perhaps it now comes from an artifact source and not red?
My second question: When Lord of Shatterskull pass attacks (fully leveled up) and deals 6 damage to all creatures defending opponent controls, would this damage kill a creature with proection red, being that the damage does not target the creature?