Adrenaline Surge

(Masters of the Wild: A Guidebook to Barbarians, Druids, and Rangers)

Transmutation
Level: Druid 2, Sorcerer 2, Wizard 2,
Components: V, S, DF,
Casting Time: 1 action
Range: Close (25 ft. + 5 ft./2 levels)
Area: Your summoned creatures within a spherical emanation with a radius equal to the range, centered on you
Duration: 1 round/level
Saving Throw: Will negates (harmless)
Spell Resistance: Yes (harmless)

Each of your summoned creatures within the area receives a +4 enhancement bonus to Strength.
This effect lasts until the spell ends or the creature leaves the area.