As a minstrel, a +40 Might tome adds +120 Block & +80 Parry. I believe Agility is to Evade as Might is to Block.
With a +16 Agility tome, I have +1,611 Evade.
With a +14 Might tome, I have +1,485 Block and +990 Parry.
All in all, with my shield, I have 2,335 (4.3%) Block, 2,912 (6.3%) Evade, and 3,186 (5.7%) Parry. That's a 16.3% chance for an attack to completely miss (when attacked in a frontal cone -- when attacked from the rear you won't block/parry any of it).
I have not slotted any BEP essences.
As a level 1 burglar, Bilbo got a pony when he joined the Smaug The Dragon raid. Then he asked for leadership, looted the chest, assigned himself the 1st age Arkenstone and mailed it to an alt (Bilbo's a VIP so can mail from anywhere). They did some PvMP and an Epic Battle, then he apologized and gave the Arkenstone back because it wasn't BoA. He kept the pony.