Advice for elite 4

so i finished nyx and now im stumped on the elite 4 my pokemon are

delta blastoise - item mega stone - nature adamant - ability shadow call
delta gardevoir - item deep sea tooth - nature jolly - ability lightning rod
haxorus - item dragon fang - nature adamant - ability rivalry (male)
blastoise - item mystic water - nature naughty - ability torrent
cyndiquil - item charcoal - nature hardy - ability blaze
delta liepard - item spell tag - nature hardy - ability unerve

Here’s a guide by Emerald24111 and Jojoboss that, if you follow it, really helps. I was getting destroyed by Kayla before I taught one of my pokemon taunt but beat her first try afterwards. (Yes, I know that I probably could have beat her on my own if I just used my head a bit more) My guide for the E4/Pokémon meta discussion hub

i’ll check it out rn thx