Spell modifiers that adjust the damage of the affected projectiles.
A Spell modifier that deducts remaining mana and adds it to the damage of the projectile, at a ratio of 1 mana being 0.625 projectile damage.
Although it can increase the damage of a projectile far more than comparable spells such as Damage Plus and Heavy Shot, it drains mana much more quickly and is a limited use spell, making it ill-suited for rapid-fire wands.
Mu has a special interaction with this spell; it will prevent the spell from taking mana away from the wand.
Other copying spells, such as Alpha and Gamma, do not share this characteristic, although using them to bypass the limited usage may be valuable.
With Mu and Wand Refresh will easily prevent using any charges.
The most important properties for a wand with this spell are projectile count, projectile speed/accuracy, and of course mana capacity/regen. Projectile damage and firing speed are far less important. The humble Spark Bolt synergises very well with this early or even well into in a run, as the speed and accuracy of Spark Bolt is exceptional and you can likely make a multishot spark bolt wand.