Has anybody developed tactics for these?
In Gods of Glorantha there is mention of mermen summoning Sea Serpents to aid them against pirates.
One idea I had was to simulate ship debris complete with a drowning sailor (actually a merman) waving for help. This worked quite well as not only did the players stop their ship but they sent out a skiff to assist. The unfortunates in the the boat were then surrounded by speargun wielding mermen. However I don't think this would work again!
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