Corrosive frost and frost not stacking

[Guvnor]

@Guvnor

Note on Corrosive Frost & interraction with other effects.

Some clarifications on the corrosive effects:

• Corrosive doesn’t override undispellables
• Corrosive overrides dispellables (so normal burn doesn’t override corrosive burn)
• Undispellables overrides corrosive
• Corrosive overrides stacks
• Corrosives secondary effects can stack with other similar ones e.g. Dark Lords corrosive poison with Little Johns minus mana generation
• Dark Lords corrosive poison can be mana shielded by clerics due to the secondary effect
• HOTMs can resists the whole corrosive effect, if they are immune to first or secondary effect e.g. Reuben and Ranvir both can resist Dark Lords status ailment

No bug working as intended.