Board Thread:General Discussion/@comment-31832165-20170517234623/@comment-30549602-20170615040357

It can be fickle, Chase, that's for sure, but I figure it's worth a shot at trying to launch the correct curse onto a target room, with two potential rooms left uncursed. If it fails, meh, you were going to have to use that summoner anyway. Might as well be the requested summoner, just in case you get lucky. It has happened to me more than once that I saved myself a summoner that way.