Old Guardian Elite skills
They removed the tomes and replaced them with Signet of Courage (replaced Tome of Courage, took its general functionality of healing) and the “Feel my Wrath” shout (took the general function of an offensive buff tool). The tomes weren’t very well-liked in general by most players as they were considered clunky and mostly ineffective, plus the devs wanted to categorize all skills (stuff like Meditation, Consecration, Shout, ect) and tomes really didn’t fit with any of the existing categories.
They mentioned that they may revisit the tome idea for a future Elite Spec, however.
If you just feel like browsing what the tomes used to be, the Wiki still has the pages active, though they of course now say that its content no longer available in the live game.
http://wiki.guildwars2.com/wiki/Tome_of_Courage
http://wiki.guildwars2.com/wiki/Tome_of_Wrath
Hi Electro, thank you very much!