Can be cast on lycanthrophy gems, but when cast on a lycan gem ONLY affects purple gems, leaving lycan gems on the board, unaffected:
Abynissia, Queen Aurora, Sycorax, The Gray King, Emperor Liang, Goblin King, The Keeper of Souls, Krystenax
Then I got bored of testing. Here’s a non-exhaustive list of troops likely to be affected by this bug, in case someone wants to continue testing:
[ "abynissia",
"queen aurora",
"quetzalma",
"sycorax",
"the gray king",
"emperor liang",
"goblin king",
"keeper of souls",
"krystenax",
"argos",
"asha",
"finley",
"ragnagord",
"shaman of set",
"shocktopus",
"tassarion",
"tuliao",
"tyri",
"astral spirit",
"cat sith",
"clockwork sphinx",
"dark maiden",
"deep dwarf",
"soothsayer",
"the devoted",
"totem guardian",
"courage",
"dwarven miner",
"honor",
"humility",
"jewel gnome",
"justice",
"loyalty",
"sacrifice",
"snowy owl" ]