(My friend amanos spectated and streamed some of my matches. This is my final game to Rank 1 Legend, versus a Druid.)
made this deck, Secret Pally (https://twitter.com/cross7224/status/636166609065766913) on the 25th of August, then hit Legend rank 4 (NA) on the day.
The following day (26th August), I used other fun decks then rank dropped, like 1000+
On the 27 of August, I added 2 Secretkeeper into the above deck, and tried both of them, then hit Legend rank 1 on NA(https://twitter.com/cross7224/status/636870890613968897).
I'm not sure which variation is better, however Secretkeepers are very strong in the mirror, since it grows when your opponent plays secrets too. So if you're facing a lot of secret Paladins on ladder, definitely use that variation.
Win rate is over 80%! Mysterious Challenger is Dr.Balanced in TGT :)
special thanks to LegoLapse (translation)