NOTHING.
That's right. NOTHING quote "need be blessed" on Siege perilous.
If NOTHING was blessed, we'd still do just fine.
It would probably be OKAY if a VERY FEW things, such as spell books, were blessed, but they don't "need" to be.
Now, this is not to say that some things, such as spell books, should be stealable, but it would probably be OK if they weren't blessed and were lootable. Boats? They do NOT need to be blessed either, though I would add them to "lootable but not stealable" list. Is that to say that books, and a select few others items, such as noobied clothing, are disastrous for Siege if blessed? No, it is simply saying they DO NOT NEED TO BE, and we'd be fine if they weren't. Speaking of boats btw, they definitely, whether blessed or lootable, need to have their whole lock/unlock plank crap removed. People should not be able to lock their boats, making it impossible for others to board.
Some may find suggestions of spell books/boats being lootable idiotic and oh so hurtful to Siege, but we'd do fine without them, and PvMers and crafters especially would certainly have more going for them. I never thought crafted needed crap like cbds, runics, powder of fort. That's not what crafters need. They need to be able to sell basic things like gm armor, and spell books, and people need to need the crafters to sell these things instead of running around in their blessed spellbooks, cursed arties, runic gear, and other overpowered crap.
Again, that's not to say it's horrible for Siege if spell books are blessed, but we do NOT need them to be and in fact it may be very good for Siege if they weren't.
I completely disagree with some other ideas of what "needs" to be blessed. Vet rewards most of all...wth? Vet rewards that give significant advantages (states/dye tubs/banners and such are fine....but ethy horses, reward cloaks and robes, and more are not), are bad for the game. We do NOT "need" ethy horses for instance to be blessable. They shouldn't even exist in the first place. That's just another item players are forced to get if they want to compete in PvP.
Siege Bless Item? NOR DO WE NEED one item of our choosing to be blessable on Siege. NO MAJOR COMBAT ITEMS OF ANY KIND, INCLUDING PBDS, CBDABLE HATS, AND VET REWARDS HAVE ANY PLACE ON SIEGE. We do not "need" these items to be blessed on Siege. We do not "need" ANY items to be blessed on Siege.