Right now, MTG Arena players diving into this week’s Midweek Magic event are falling into a client trap that consumes their Wildcards and instantly locks them out of their matches.
This week’s event features pre-constructed Star Trek Welcome Decks to celebrate the digital launch of the new Universes Beyond set. Inside the event interface, the game gives players the standard option to “Complete” unowned cards in these pre-cons using their own Wildcards.
However, actually clicking the prompt and spending the currency breaks the deck’s eligibility.

Reports of the issue first surfaced early Wednesday morning in a post on the Magic Arena subreddit. According to user accounts, modifying the deck with crafted cards instantly renders it invalid for event submission. This leaves players who spent their premium currency locked out of the very event they just paid to build a deck for.
Wizards of the Coast has not yet confirmed if a hotfix is rolling out today or if players caught in this loop will have their spent Wildcards automatically refunded. Until the client updates, Arena players should avoid hitting the completion button inside the Midweek Magic interface.
ALSO READ: Star Trek Secret Lair Drops Hide Randomized Captain Command Towers in the Bonus Card Slot