Yea, in ultimate casts should still get a boost to the amount of xp stolen by the XPsteal series of specials in addition to their +30 paralyze/confuse/freeze proc chance bonus and their devil/demon reduction. However, these ONLY apply in ULTIMATE difficulty. In normal-vhard you would steal the same amount of xp as any other class. Generally it lets you steal up to the cap of 80exp per unreduced hit from most every enemy, whereas a ramar would only steal like 30-50exp from the enemy in the tests I just ran. Also you cant steal exp if the attack does 0 damage. Flight Fan is also only Lord's tier special, despite the description saying 12% it only actually steals 10%.