Invigorate is so terrible that i won 5 matches in a row with it.
Wait, what? Something is wrong... We must have gone to a parallel universe where Invigorate is actually good!
OK now jokes aside, i decided to make the most midrangey deck i've ever done, to increase Invigorate's odds and it actually worked. Finally finished that Mastery and got my Jack of All Trades title.
The deck is just pure pointslam + techs, and i got techs for everything - purify, movement, artefact removal, row punish, 2 locks and 1 tall removal (because nobody expects those in ST), and Oneiromancy to get any of those according to the situation. And for the pointslam, got the ones with the best ratios and multiple bodies: Novigrad Justice, Vernossiel and Eleyas.
I've been able to beat a lot of decks with this, not just new players or memes. It beat every tier 2 deck because those often rely on scenarios, which are just removed, like Passiflora and Masq Ball. I havent faced any SK (which would probably give me no chance) but i've reliably beat Shieldwall, thanks to my techs that counter each and every one of their moves.
Now that i've finally managed to build a Invig deck with over 50% winrate, im done with its mastery and dont need to use it anymore