spell questions: Breath of Winter, Communion M/S

[Kristoffer O]

I think all attacks from a blessed unit gets an extra fire dmg roll (flails having 2).
The fire attack always hits, as does poison on a poisoned weapon, but the poisoned weapon must also wound if the poison is to have any effect.

No secondary effects need a second attack roll IIRC, but some, like poison, must wound the target.