by 
The dreams Resto Shamans had of a half hour healing rain have been dashed. It now caps out at 40 seconds on the PTR with the Conductivity talent.
The time duration has been changing as well, from an additional 2 seconds per direct cast, to 3 seconds, to 4 seconds, to 6 seconds, and to a duration on the PTR seemingly affected by some mysterious Blizzard formula (mine currently says 1.57 seconds on the PTR).
The talent is definitely looking less desirable now with the 40 second cap on fights where the raid remains stacked.
