Links in title like that are incredibly frustrating to get to work properly, but no, the only Alexstrasza is the one from DQ Alex, and its copy. The copy does cost 9 to play, which does sound like a bug.
https://hsreplay.net/replay/3DWd9xJ65KaYv4npRTxC99#turn=8a
@Freewalker: next time, please follow the instructions here to share links: