Clepsydra on opponent's deck does not work anymore

[gangialf]

Since last update, targeting the opponent with clepsydra does nothing at all

[serprex]

https://github.com/serprex/openEtG/commit/21fad101013c6e6acad8559d602aa5b73d5a0769

! is the most common character involved in my programming typos. Exceeds my off by one errors