I do not own this beauty, but I was lucky enough to pick up an original artwork at the Grand Prix of my own Makeshift Mannequin from Lorwyn
Whereas Zoroark-GX Control looks to reduce the opponent's hand size, it at least allows the opponent to play Supporters and to attack, Shock Lock aims to prevent both the Supporter option and the attacking option altogether
If nothing else, it's a great way to give yourself the opportunity to grab a sandwich while the table you're at is slogging through the 87th turn of the game
All single cards are sleeved immediately and are packaged safely for transit
My proof of concept that kept me watching for ways to abuse it was the combination of Emmara, Soul of the Accord, Song of Freyalise, Shanna, Sisays Legacy and March of the Multitudes, which alone is lethal on Turn five (assuming no missed land drops)