Rime Wand

A rod made of unmelting ice, this object radiates a slight sense of eagerness.
Benefit: As either a standard action, or once per [Round] in place of a single attack in an attack action, you may shoot an ice dagger at target opponent within [Medium] range. The dagger automatically deals energy damage with the [Cold] descriptor equal to your level + your Key Offensive Modifier. When you use the Rime Wand by sacrificing an attack in an attack action (but not when you use it as any other action), you may sacrifice additional attacks, up to a maximum of 1 per 5 levels you possess, to increase the damage done by the ice dagger by your Key Offensive Modifier for every attack you give up. This is a spell-like ability.