Talk:Lucky Spring/@comment-38529357-20190326085218/@comment-36837528-20190326144354

Its even easier you just have to count the times you pick an odd number of cards. If you pick odd times an odd number of cards your total number of cards changes between even and odd.

And the last pick might be an opportunity to pick even or odd and you can decide you want the same card again or the other, if this works like Modulec states.