The material below is Open Game Content from a 3PP Source
School evocation; Level bard 3
Casting Time 1 standard action
Components V, S, M (a spent wand)
Area 10-ft.-radius emanation centered on you
Duration 1 round/level
Saving Throw none; Spell Resistance no
A shimmering, blue and gold radiance surrounds you, enhancing arcane spells cast by your allies within its area. Any arcane spell cast by a creature within the area gains a +1 enhancement bonus to the DC of any saving throws against the spell, and can be cast as if one of the following metamagic feats was applied to it (without increasing the spell level or casting time): Enlarge Spell, Extend Spell, Silent Spell, or Still Spell (you choose the metamagic feat when you cast arcane concordance).