- Gwent Update: Feb 6, 2017 Patch: Will no longer be able to resurrect Permadeath units.; Strength changed from 1 to 2.; Will be buffed by your opponent's resurrections if the resurrected unit is played on your side.
- Gwent Update: Dec 19, 2016 Patch: Sigrdrifa's passive ability will only be triggered by your own resurrections.
- Gwent Update: Nov 15, 2016 Patch: Sigrdrifa strength increased from 1 to 2.
- See this subject on The Witcher wiki: Sigrdrifa