Glausior first appeared in round 432, so he has until the end of his turn in round 435. If you want to get technical about it, he has until just before his turn in round 436, but Litho is not planning on pushing Glausior into the Victory Zone during Litho's turn in round 436, so Glausior's last chance to get into the Victory Zone on his own is in round 435, which is the current round.