Powers

Elemental Aura

On command, the blade will be surrounded by a 3 inch thick elemental aura. The aura of air is hazy white, the aura of earth is dull grey, the aura of fire is flickering red, and the aura of water is shimmering blue. Only one aura can be activated at a time.

Melee

The blade does triple base damage against creatures whose primary composition matches the aura element of the blade. Earth aura does triple base damage against stone golems. Fire aura does triple base damage against salamanders. Creatures of mixed composition, such as flesh, are not susceptible to the aura’s damaging effect.

Energy Sheath

If the sacrificed spell dealt damage of a particular energy type, the blade radiates that energy type, including any special properties (moonlight affecting lycanthropes, etc.). If the spell has more than one energy type, the wielder selects which type the sword radiates at the time the spell is cast. Subsequent spells with energy types immediately replace the effects of the previous spell. The energy radiated lasts for as many rounds as the spell level plus an additional round for every 3 class levels of the spellcaster. Every successful melee attack delivers an additional 1d6 of damage of that energy type, while a critical hit will deliver 1d10 instead.
Common energy types include: Cold, Electric, Fire, Negative, Positive, Sonic

Bladethirst

If the sacrificed spell doesn’t have a particular energy type, the sword’s bonus to hit increases by +1 per spell level of the sacrificed spell. The bonus to hit decreases each round until it reaches +1 which will last an additional round for every 3 levels of the caster. The wielder also gains an initiative bonus of +1 for as long a the blade retains the bonus to hit.
Sacrificing a subsequent spell only provides benefits if bonuses exceed the current bonuses (casting a fifth level when when the sword has dropped to +4 will bump the sword back to +5 for a round), otherwise the new spell is wasted.

Command Element

When the aura comes in contact with a volume of matching elemental material, it can control that material out to a 150 foot radius. The elemental material can be moved, shaped, parted or sculpted.

Interactions

Teuvel'Khilat

Dweomer Drinker - a stored power can be used to generate an energy sheath

Teuvel'Kiira'Khilat

Avarphyn'Teuvel'Khilat

Dragon Breath - Dragon Breath will automatically active the energy sheath with the energy type of the breath weapon for 7 rounds.