Season 20 added the Alchemist — a potion-and-transmutation support-damage hybrid — and began the Legendary equipment era. The Kardamahal Underground Temple and Swamp of Ruin brought two elite zones, and the Rune Mage got a full renewal.
MU's newest support-flavoured class launched with dedicated equipment patches and a playstyle built around alchemical bursts and battlefield utility.
Above mastery gear, the new Legendary tier introduced items with signature powers — the start of a fresh top-end ladder that Season 21 immediately extended.
The underground temple of Kardamahal (with elite zone) headlined Part 1, and Part 2 added the Swamp of Ruin plus the 7th Guardian, Tauros.
Guild matching, a rebuilt combination UI, the frost-themed 8th mastery earrings and a full Rune Mage renewal rounded out one of the busiest seasons of the modern era.