You weave an illusion that is perfectly real to all who behold it. For 1 MP, the illusion is insubstantial and visual; for 2 MP the illusion also has sound; for 3 MP the illusion has physical substance. Harm caused by illusions can kill but is undone when the illusion ends or is disbelieved. Those suspicious of the illusion may make an opposed spell check to disbelieve. You must concentrate on the phantasm for the duration of the spell, or else it ceases to exist.