While I do not yet have 20 completions of the Deathwyrm, myself and a friend both hit out 20th reward lists for Thunder Peak today.
It was disappointing. The list consisted of the 3 named items, Meridian Fragment, 100 CoVs, 10 Fire Phlogiston and either a Legendary Victory or Impressive Trophy, I can;t remember.
Why is there no option for tomes? There should be at least one static +5, with a small chance of a +6 tome in this 20th list. We are going to get more than just one 20th list with these new raids, and it would be awesome to see some tomes thrown in there instead of having to decide between gear you already have, CoVs which there are plenty of other avenues to get, phlogistons is nice for a bit, and then a measly guild renown token....
Please look at adding something more substantial to this list.