Feel free to suggest more items to add to the topic, my answers have already been answered so I hope this can help someone who needs.
- Drops from level 240 Saalus Convent.
- Drops from Shardstatue, around 0,1% drop rate.
- Animus drops from level 217 dungeon.
- Ignition drops from level 175 dungeon. ToSbase say it can be dropped from Vubbe Fire Wizard but I’ve never seen anyone confirm it.
- Petamion drops from level 130 dungeon and from Necroventer World Boss.
- Max Pentamion drops from level 190 dungeon and from Ellagnos World Boss.
- Virtov set items drops from level 240 dungeon.
- Sage Wall drops from Venucleos. (VERY low rate)
- Aias drops from level 175 dungeon.
- Ledas Shield drops from level 115 dungeon.
- Otrava Shield drops from level 217 dungeon.
- Arde Dagger drops from level 90 dungeon
- Karacha Dagger drops from Dullahan’s World Boss cube.
- Venom drops from level 190 dungeon.
- Maga Rod drops from level 190 dungeon.
- Superior Corona Rod drops from White Spion Mage.
- Catacombs Club drops from level 200 dungeon
- No idea on who drops this, really want to know
I found these drops through some research so I would like to make it easier for those looking for these information, hope someone can answer my main topic questions. I can change it to some location drop finder later if people find it useful but I really just want to drop that ring 

