Banish Undead

Effect
Increasing Banish Undead level raises the focus cost, but lowers the fizzle chance.

Life Attunement affects the damage.

Stacking and charging glyphs improve the focus cost and damage.

Trivia

 * In Release 18 had changed reagents, increased damage and if undead is killed by this spell it should prevent it from resurrecting it."Banish Undead: If the killing blow to an undead is from the “Banish Undead” spell then they will not resurrect. Banish Undead also does far more damage to undead creatures now."
 * Banish Undead must hit an undead target to gain levels. Alternatively, the Cleansing Rain combo can train Banish Undead without a target.

External Reference

 * Magic, Combat, and Crafting Skills on the Shroud of the Avatar Forums