You should have sufficient redundancy in your things that this 1 for 1 tempo loss card is not something you want
If the controller of Unyielding Gatekeeper's last ability controlled the target permanent at the time the ability began to resolve, the permanent will return to the battlefield tapped under that player's control, regardless of who its owner is
Protecting your combo from countermagic while recurring cards like Frantic Search and Snap sounds promising
I dont really like the gamble here though, as it reminds me of Clinquant Skymage (which was generally mediocre)
(We have since brought back "cast" to lessen part of this problem.) The joke that most people miss was that we asked the artist, Stephen Daniele, to give us an illustration that would like one thing one way and like a different thing upside down
It gives you that enchantress effect whenever your (or anyone else's) enchantments leave the battlefield as well