Bluetracker

Tracks Blizzard employees across various accounts.

All Cards from the TWD Secret Lair have had their Legality Changed on Gatherer to not be Legal in any formats

Wizards Community Team

Posted 5 years ago (Source)

Hey everyone. As some in this thread have already speculated, this is an error in Gatherer that we're working to address. Nothing has changed with the legality of these cards. Thanks for flagging this!
Wizards Community Team

Posted 5 years ago (Source)

Probably a glitch.

Hey everyone. Mentioned this in a comment elsewhere in the thread, but replying here for additional visibility. As some have already speculated, this is an error in Gatherer that we're working to address. Nothing has changed with the legality of these cards. Thanks for flagging this!