ZEBRASS

Z10 - E1 - B3 - R1 - A1 - S1 - S1 has 18 points in Scrabble!

Z10 - E1 - B4 - R1 - A1 - S1 - S1 has 19 points in Words with Friends!

Found in the OTCWL2014, SOWPODS, ENABLE, and WWF dictionaries