Vengance Skull

When cast, the outline of a red skull projects from the caster, creating a feeling akin to pure, unbridled fury.

When cast, the caster gets a -5 for rolls to hit, although, every time an attack misses the caster gets a +1 to damage which can stack until they land a successful hit or the spell is broken.

Materials are not required to cast this spell, although they can alter the type of damage the bonus does.  When a material is used to cast this spell, the damage type stays the same the entire duration.

Fire:  A lit torch

Cold:  Half a pound of ice or water

Poison: The leaf of a poison ivy plant

Acid:  A rusty item an quarter of a pound heavy

Lightning:  Half a pound of copper (Not currency)

Psychic:  Any reflective gem

Necrotic:  A bone

When At Higher Levels.  Every other spell level boosts the damage bonus by +1.  At 4th level the bonus is +2, at 6th it's +3, until at 8th, instead of extra damage, the caster gets a 1d4 bonus to AC on top of the already established damage bonuses