Bain Long Bow

Currently known notable orb drops:
Balrog Card
Balrog Leather
Balrog's Leather Shoes (2/2/2/2 6 slots, lv58 req, karmable)
Casters
Clean Slate Scroll 1%
Chaos Scroll 60% (needs to be confirmed)
White Scrolls (needs to be confirmed)

You can trade 1, 7, 20, or 30 balrog leathers in at once to the NPC in the map directly above the lobby. You cannot access that map if you warped there through Manji, the portal is only accessible if you originally came from that map. In my experience, trading one at a time only rewards balrog defense scrolls, so I don't recommend you trade once at a time. I'm guessing that 1 leather gives defense, 7 leathers gives hp/mp/speed/jump/acc/avoid, 20 leathers gives str/int/dex/luk, and 30 leathers gives twilight, but I haven't gotten enough leathers to test the higher numbers yet.

Balrog Leather Trades:
Balrog's Defense Scroll 30% (wdef+10, mdef+10)
Balrog's HP Scroll 30% (hp+30)
Balrog's MP Scroll 30% (mp+30)
Balrog's Speed Scroll 30% (speed+3)
Balrog's Jump Scroll 30% (jump+3)
Balrog's Accuracy Scroll 30% (acc+3)
Balrog's Avoidability Scroll 30% (avoid+3)
Balrog's STR Scroll 30% (str+2)
Balrog's INT Scroll 30% (int+2)
Balrog's LUK Scroll 30% (luk+2)
Balrog's DEX Scroll 30% (dex+2)
Balrog's Twilight Scroll 5% (str, int, dex, luk, speed, jump, accuracy, avoidability +4; wdef, mdef +14; hp, mp +40)
All are untradeable


Hopefully I've covered everything there is to know, and sorry for the lack of pictures, just typed this up in like a half hour lol.

 Spoiler

베인윙즈 (Bain Wings)
Magician Only
untradeable once equipped, "Epic Item"
Level 58
Attack Speed 4 (Fast)
Required STR: 0
Required DEX: 0
Required INT: 0
Required LUK: 0
Weapon ATT 53
Magic ATT 85
7 Slots
10% chance of 5 second stun,-5 MP each time that occurs.
10% chance of 30 second Poison, dealing 120 damage per second. MP -5 each time.


베인스워드 (Bain Sword)
Warrior Only
untradeable once equipped, "Epic Item"
Level 58
Attack Speed 4 (Fast)
Required STR: 115
Required DEX: 0
Required INT: 0
Required LUK: 0
Weapon ATT 55
7 slots
5% chance of 10 second Poison, dealing 300 damage per second. MP -5 each time.
10% chance of 10 second stun. MP -1 each time.


베인바이터 (Bain Biter)
Thief Only
untradeable once equipped, "Epic Item"
Level 50
Attack Speed 4 (Fast)
Required STR: 0
Required DEX: 0
Required INT: 0
Required LUK: 0
Weapon ATT 33
Weapon DEF 3
DEX +4
7 slots
10% chance of 5 second stun,-5 MP each time that occurs.
10% chance of 30 second Poison, dealing 120 damage per second. MP -5 each time.

extra info

I'm not sure if a bain bow is coming out, but here is some information I had read in the balrog boss guide thread. I know these haven't been implemented, yet.