I've seen several questions about battling Ultra Necrozma, but if that's the case, why does it always say they're trying to kill it, are you not able to catch it even though it's technically a wild Pokemon battle? Please explain, also, is this the same Necrozma fought on Mount Lanakila? And finally, you can get the one on Mount Lanakila pre-E4 correct? The location's available, I'm just not sure if he appears till later. Thanks for all your help in advance!