Word of Recall

[Snails]

1: Greater Dispelling (used)
2: Heal (presumed too "core" a spell for the party cleric to neglect)
3:????
Domain: Harm (most generous placement of his used harm spell)

#3 = Quickened Inflict Moderate.

It is the killing stroke after Harm, or a quick bit of healing. We saw this employed in his fight against Nale. While that does not prove he prepared such a spell again, Malack being Malack, it is a pretty good bet that his ways vary little day to day.