I'm creating a spell that grants the target immunity to extreme cold and extreme heat (2014 rules), and I would like to be able to add a tooltip for these two rules, as well as adding an immunity modifier for them. The "Immunity" modifier already exists for damage and conditions, so adding extreme cold and extreme heat shouldn't be too hard. As for the tooltips, the links to the rules are in the DMG, extreme cold and extreme heat.
I'm creating a spell that grants the target immunity to extreme cold and extreme heat (2014 rules), and I would like to be able to add a tooltip for these two rules, as well as adding an immunity modifier for them. The "Immunity" modifier already exists for damage and conditions, so adding extreme cold and extreme heat shouldn't be too hard. As for the tooltips, the links to the rules are in the DMG, extreme cold and extreme heat.
They/Them
My Homebrew