ToV dragons always drop two items
 

[Fri Jul 17 18:51:16 2015] Toggin tells the guild, 'Sea Dragon Meat, Ancient Pirate's Eyepatch, Helm of the Deep Sea'
[Wed Jul 15 20:17:23 2015] Nissmo tells the guild, 'Facesmasher, Crown of Resiliance'
[Wed Jul 15 20:34:31 2015] Toggin tells the guild, 'Mask of Terror, Nevederia's Left Eye'
[Wed Jul 15 19:15:45 2015] Enorm tells the guild, 'Windraider's Belt, Dragon Skin Bracelet'
[Wed Jul 15 18:23:54 2015] Toggin tells the guild, 'Shield of the Dawn, Shield of Midnight'

checking Allakhazam posts:

Sevalak: no mention of more than two items
Jorlleag: "crown of resistance, chain legs, helm of crawler" "Dropped us 2 Helmet of the Crawler's and a Blydreln's Bane."
Lady Nev: "Bet you didn't know lady nev has 3 eyes... hehe she dropped 2 left eyes and one right eye for us. I got the piercer a few kills back." "girdle of dark power, mask of terror and a horn not bad "

So there should be at least some chance for 3 items. Except Vulak is always supposed to drop 4 I think.

hopefully they don't use that insane code that exists for VP dragons where they can drop 0 items