OOC: I was referring to the breath weapon when I asked.
Actually, after checking the MM II conversion, I find out that Windbag does know something about its opponent. It knows it is a storm drake; its dragon traits; it has very good resistance to cold and electricity, and it has spell-like abilities (two of which are stinking cloud, control winds). My guess is that this reinforces your decision to use the antimagic field.
Round 625
Stormy turns ponderously, and lands at 25N5E. He tries to bite Windbag, but bites wind instead (natural 1).
Actually, after checking the MM II conversion, I find out that Windbag does know something about its opponent. It knows it is a storm drake; its dragon traits; it has very good resistance to cold and electricity, and it has spell-like abilities (two of which are stinking cloud, control winds). My guess is that this reinforces your decision to use the antimagic field.
Round 625
Stormy turns ponderously, and lands at 25N5E. He tries to bite Windbag, but bites wind instead (natural 1).