Massasauga

"Ice! Be with us!"
 - Massassauga, just before calling down an enormous storm of ice

Massasauga was a White Dragon encountered by the group in Session 11 who aided the group in defeating a large cluster of Sludge. Later, he revealed that he was in fact a collection of life forms called the Tazza'Khool, who are in many ways similar to the Nahiki.
Later, the group would encounter Massasauga again in the Shard Dimension, although their encounter was breif.