Locke doesnt even need to connect since its an attack trigger, so you can mug your opponents then lead Locke to safety with Maze of Ith or something
You never see more of another player than a username and rank, and can only communicate via a few pre-programmed, non-verbal emotes
Murktide is also a graveyard-dependant threat this means that Relics of Progenitus, Rest in Peace and other graveyard hate, that are typically decent against blue-based decks, can stop this dragon from being a good threat or to be castable at all
As an Enchanted Rare card, naturally the full card artwork on this variant of Ursula, Deceiver of All is spectacular, too
There are a few keys to understanding what exactly these restrictions mean
Zedruu the Greathearted The main thing about Zedruu the Greathearted is that thanks to its Jeskai color identity, you can steal your opponents permanents then start giving them out to other opponents