Blowfin, the haste stacks. These shoes which were next to worthless to begin with are pretty much a desired item now just for BSTs. Great piece if you can get lucky enough to hit the 14% Haste with a pet.
Re: Diabolos.Rasantath
However, BST can wear Aurum Sabatons which were available at the time of your posting, and are superior in every way stat-wise with the added bonus of being free.
This gives more Att the Amir, so I'd hardly call them obsolete... But if your looking for a free piece of armor, Amir would be your best bet for this slot.
Ridiculous prices for a tier 1 item on some servers, not worth more than a mil. If you want pet haste that badly save up for a Moepapa Stone instead. Amazed that people indulge sellers trying to flog these things for more than 3mil.