can you buy single cards in mtg arena Where should Singles? ~Magic: The Gathering~ Acquiring Cards in the Magic:

Number 186 Language English Not Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pauper, Pioneer, Standard, Timeless, Vintage Rulings (1/19/2018) Contraptions are artifacts

Citadel Siege: Go counter crazy and tap the daylights out of your opponents

This can translate to good deals on MTG booster boxes or even booster cases (traditionally a box of 6 booster boxes, but this can vary based on the product line) in a few different ways

Each card captures the essence of a specific character or magical ability

The interesting part is that for you can tap it and have target creature you control Connive X where X is the number of creatures that died that turn