Rocky Helmet. Flying types like post-Tera Roaring Moon can never actually die to Ruination + EQ Ting Lu, but you can clinch it being put into RH (Rocky Helmet) range and if they get greedy with DDs, you can bait an Acro, rather than a resisted Knock Off, and take the resisted hit with Skarmory to potentially keep both in-tact.Wow thanks so much for the generous detailed reply. I'll have to mull over a few times for it to sink it, but educational for sure.
I appreciate the sheer amount of dedication you've committed Finch, that's definitely made a big impact on improving Smogon.
small edit: I'm curious what does RH stand for, when you said "RH in the back." ?