All LoL skins tiers, how to get them on sale

What are all of the League of Legends skin tiers, and how do you get cosmetics cheap? As Riot's MOBA continues to expand, it's a legitimate question to ask. I remember the good ol' days when there were only Deluxe, Epic, Legendary, and Ultimate skins; now there's Transcendent, Mythic Variants, Exalted - the list feels like it goes on and on. If you're a returning player who's wondering what the heck has happened, or a brand new one confused by all of the jargon, don't worry: this LoL skins guide has you covered. Over the past few years, Riot's premium-level skin offerings have increased exponentially. Starting off with the divisive Dark Cosmic Erasure Jhin chroma, which is effectively a slightly snazzier recolor of Dark Star Jhin, we've seen the introduction of the Sanctum (which operates on a gacha-esque pull system), and the ever-polarizing Hall of Legends skins, which celebrate iconic League of Legends players, but have a staggeringly high price point.