Elemental Dmg Question

Is there a guide anywhere that shows which mobs are vulnerable to which different kind of damage, fire lightning etc. ? If anyone knows where this info could be found, I would appreciate it.

Sometimes it's more common sense on what enemy is vulnerable to a certain element.

Ice/Plant type enemies are weak against fire. Ice golems and jade spiders are types that come to mind. Undead are also prone to fire, since they are dead, and dry, and have things that can burn easily.

A fire type enemy would be weak against air and water. Fire Imps.

Most people tend to stick with one type of attribute, choosing to max it out. Even though water would be a good build in Ring of Fire, I've seen many fire Elementals because of spells like Meteor Shower, Immolate, and general time based AOE's (Fire Storm, Lava Font, etc...).

Obviously Ice golems are going to be susceptible to fire dmg. I'm talking about mobs that have no distinguishing elemental characteristic like scales or ettins. Who knows if they are weaker against any certain thing? Also, i'm more referring to the four types of weapon upgrades fire, cold, earth lightning?

I'd recommend fire, as the most frequent weakness is fire.

You can also try different upgrades yourself. Or have all four, and test them out.