Talk:Gilgamesh/@comment-203.113.118.110-20170817013707/@comment-47.186.90.189-20170829154110

Most CE cards are constant effects unless otherwise stated, so I'm pretty sure it lasts for the entire time.

For instance, the CE card Nightless Rose states "Apply Guts for yourself (1 time, restore 500 HP). Once it's used, it doesn't reapply.

It should be noted, however, that the "1 time" thing isn't actually on Nightless Rose's page from this wiki, it only says that in-game. I don't know why that is. But it's possible that Key of the King's Law is similar, though because of how weak that effect is I doubt it.