In this puzzle:
MODES → SOLO ADVENTURES → THE BOOMSDAY PROJECT → PUZZLE LAB - > MIRROR
Last stage: TEST SUBJECT #362
Holly Smite card make 3 damage. When i’ve watched old movies on YT they make 2 damage.
Now the puzzle is not solveable
This puzzle can still be solved.
There’s another solution that includes this change.
Actually you never needed that holy smite deals 2, it could have done any (non 0) number of damage. The solution you’ve seen was just one among others.
There are some puzzles that are currently broken because of card changes but not this one
I had the same problem, but it’s possible to solve it: Hit the yeti 4/5 with a crocodile on the left side, then heal his yeti 4/3 on the right side by hero power, then hit the crocodile with a crocodile, and kill your crocodile with the holy smite.