Did this today.
Was helping guildie with Thirsty River, looked up Elite Skill Caps on guildwiki, noticed it says 'Mantra of Recovery' and instantly think, 'Oh, the 20 second energy regen thing.' I ran prot (horrible idea, we had no healer. But I digress), and brought a skill cap.
First boss, hooray, hes dead, I cap, see the golden letters, click 'Capture.' As soon as I look down onto my skillbar, I relize it ISNT what Im looking for. Back to guildwiki, type in 'mantra,' all the mantra skills pop up.
And lo and behold, MANTRA OF RECALL FTW!!!
Anyway, I capped it from Featherclaw later that night.
Also, just as a sidethought, Id like to mention it took me 14 tries to beat Nolani with my monk.