Acid Burst Blade
Swordmage Attack 13
Your blade turns into acid mid-swing, splattering against your foe and splashing a flesh-searing spray on nearby enemies.
Melee weapon
Special: Aegis of Assault: When charging, you can use this power in place of a melee basic attack.
Target: One creature
Attack: Intelligence vs. AC
Hit: 2[W] + Intelligence modifier acid damage, and enemies adjacent to the target take 1d6 + Strength modifier acid damage.
Acid Burst Blade is a 13th-level Swordmage encounter attack power. You can use this ability in place of a melee basic attack power when you use your Aegis of assault immediate reaction. [Dr385:42]