Collective Voyage + Minds Aglow I quite dislike the join forces mechanic in general, though I find Collective Voyage to be the real offender given how quickly it accelerates games out of control
Also consider how quickly you can station it
During the course of her investigation, she finds that her friend was sent back in time to the year 1920 by the Weeping Angels
Players need new cards to keep up with the game, of course, but that doesnt account for the huge success of Collector Boosters
With Neriv on the battlefield, a creature that deals damage on the same turn it entered has it dealing twice as much damage instead
Add to this the ability to barter with customers who want to sell or trade, host playing tournaments in your shop, and set up events around certain cards and card types, and you have a living, breathing storefront