We will get Shield Slam earlier (Proof inside)

http://wotlk.wowhead.com/?item=38363

Venture Co. Libram of Protection Binds when picked up Unique Relic Libram Requires Level 74

Equip: Your Shield of the Righteous deals an additional 96 damage.
"Walk softly and carry a big book"

So, why having this on level 74 when you train ShoR on level 75? Strange.