The word rhabdomancer is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 25
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (44 words)
abdomen, abrader, adenoma, adorner, arbored, archean, armband, armored, barcode, boarder, brander, broaden, broader, brocade, chamber, charade, charmed, charmer, charred, chroman, chromed, comrade, crabman, decaohm, drachma, handcar, headman, hoarder, macabre, marched, marcher, menorah, monarch, narcoma, orchard, ranched, rancher, readorn, reboard, rebrand, roached, roadman, roadmen, romance