Topic: What spells require RRs?

[PiXeL01]

Relearning RM2 after more than 10 years away from it is proving to be a challenge when questions appearing I either had answers for back then or just winged.

My question today is what spells require resistance rolls? Balls and Bolts do not, but what about wall and fog spells? If jumping through them is RR required or not? What about Vacuum or Fire Cloak (Comp VII)?
Once I think I believed F spells required RRs though now I’m not sure.

Bonus question: where is the (optional) rule for 10% instantaneous spells?

Thank you always for your help

[Hurin]

Bonus question: where is the (optional) rule for 10% instantaneous spells?

The answer is a bit complicated, but you can find a full history of the instantaneous spell in my post #32 here:

http://www.ironcrown.com/ICEforums/index.php?topic=18590.20

The short answer is that Instant spells cost 75% action to cast in the core RM2 rules, with an optional rule to reduce that to 50%. The optional rules introduced in RM2's Companions I, IV, and VI effectively reduced the amount of activity required to cast an instant spell, but they did so apparently based on a mistake in what 'instant' meant (it really was supposed to mean 'requires no prep' rather than 'requires no activity'), so RM2's Companion VII clarified that instant spells require 75% or 90% activity. RMSS went in the other direction and reduced that activity to 10%, changing the meaning of Instant from the original 'requires no prep' to the new 'requires minimal activity'.

[rdanhenry]

Fog spells create fog. You cannot resist the existence of fog, so no RR. Wall spells do not allow for an RR, but you have to choose to cross a Wall of Fire, so no unavoidable damage there.

Vacuum allows an RR; checking Fire Cloak, it would as well. That is the very reason that these spells that blatantly use an element are Force rather than Elemental, because they need to allow for an RR.