Boomsday!
Show your opponent that you’re a mad genius! Or maybe a happy one, depending on the mulligan. Acquired from completing all of Dr. Boom’s puzzles.
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How to Obtain
Clear Puzzle Lab
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Comments
Puzzle lab was one of the best things in HS ever
How many of you looked up the answers? DONT BE SHY!
Card backs for Achievements is a great idea. Collect them all!
I really, really liked this content.
This card back is totally worth getting. Loved Puzzle Lab