Polythoral
Hipster Mustaine
Number one for me, by far. This is the album that created my interest in metal in it's entirety. Before hearing this I listened to pop punk like Allister and Fenix TX and MxPx, as well as emo stuffs. All I cared about what vocals and lyrics. My friend showed me Kezia in early high school and I listened to that album multiple times a day for months straight, listening to just the instrumentals for so long, being amazed at what could be done. I later also realized the wonder of the vocals and lyrics. Absolute favorite album and band ever, will always be. Perfect as fuck.
Not much else to be honest, most of my evolution and influence outside of that has been gradual. I slowly evolve into new interests and gain ideas from new music as I hear it.
Colors by BTBAM probably had a noticeable impact, just by the reason that I suddenly realized, yet again, what was possible with music and how complex and musical metal can be.
Periphery I guess had a decent impact. The idea of such rhythmic stuff and the focus of groove has been pretty huge for me, I focus a lot of groove these days.
Scale The Summit as well, just because I love the earthy and natural sound they have, it's something I utilize a lot. Sus2 and 3/4 and 5/4 everywhur.