I picked up a set of Venom Talisman and have found them not only to be underwhelming but they appear to not function as listed.
They state "Perfect Basic attacks have a 35% chance to inflict additional true damage to all enemies with a 35% chance to inflict Crave, Exhaust AND Bloodlust for 2 turns"
The % to actually fire is extremely low on a single hitter and is only marginally better on a multi-hitter. The damage, when it does fire, is less than 1k and does hit every enemy. The bug is the second part of the effect. The 35% to inflict applies to each enemy separately and it does not inflict all 3 effects. It can inflict 1, 2 or no effects on each enemy. I have been testing this on several characters and have yet to see any enemy have all 3 negative effects on them.