The way C'Thun is dealt with in-game appears to have changed with the Caverns of Time Twist.
Issues
Player entities never have their SEEN_CTHUN tag set
C'Thun player/opponent proxies are no longer populated
PlayerCthun and OpponentCthun entities are populated on the first play of a C'Thun subsidiary card but their attack/health values seem to lag actual values
The way C'Thun is dealt with in-game appears to have changed with the Caverns of Time Twist.
Issues
Changes
Fixes #4490