OOC: ah, normal init surprise, shared for regular, got it.

Ohara moves to v18, provoking an attack of opportunity from GL1, no doubt(Ohara is AC14, HP22).
Reactive concentration check if needed: (d20+11)[30]

As he moves out of the range of the silence, a string of gnomish cursing suddenly becomes audible from his lips. Ohara turns and blasts GL1 and G12 with Color Spray(Will Sv, DC 15).

Rolling effects for if they fail:
1-2HD: (2d4)[6] rounds of unconciousness, (1d4)[3] rounds of blindness, 1 round of stunned.
3-4HD: (1d4)[2] rounds of blindness, 1 round of stunned.
Other: 1 round of stunned.