Snake's Swiftness, Mass

(Spell Compendium, page 193, DnD 3.5)

Transmutation

Level: ; Druid 2; Sorcerer/Wizard 3
Components: V, S, DF
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: Allied creatures in a 20-ft.- radius burst
Duration: Instantaneous
Saving Throw: Will negates (harmless)
Spell Resistance: Yes (harmless)

You hold the snake scales high overhead, and they evaporate in a flash of light. That radiance carries to every ally in your command—and as one, they unleash a volley of attacks.

This spell functions like snake's swiftness, except that it affects multiple allies out to medium range.