A dragon hasta added into our client would add an alternate choice for pkers besides the generic whip. Making it be a rare drop from smoke dungeon boss seems logical, but thats up to you. It just seems that hastae are pretty obscolete right now with whips available.
From what I have seen while testing all the hastae I have [iron, steel, mithril, adamant, rune], each hasta has a max exactly 3 higher than the previous tier. With the gear I currently use, my rune hasta maxes a 40 with piety and a strength potion (3). That would mean that with a dragon hasta, I should max a 43, if it follows the trend of the other hastae.
My current gear-
Nezzy
Fury
Stone
Dboots
Bgloves
Granite legs
Dragon defender
Strength cape (t)