Abzan - AB (as in “can”) zan (rhymes with “man”) →アブザン(わかる)
Jeskai - JES (rhymes with “yes”, hard j) kai (as in Kai Budde) →ジェスカイ(わかる)
Mardu - MAR (as in “Mark” with no k) du (sounds like “do”) →マルドゥ(わからんでもない)
Temur - TE (like “tea”) mur (rhymes with “her”) →ティムール(既存のカタカナに寄せてきた)
Sultai - SUL (rhymes “dull”) tie (like a necktie) →スゥルタイ(！！？！？！？！？！！？？？？？)

ソース
http://markrosewater.tumblr.com/post/92957305833/for-those-of-us-who-couldnt-hear-them-in-person