The boss fight from last time picks up right where it left off, in the sorcerer's great library. The Last Sorcerer is just around the corner, probably on the other side of some glowstone. The death counter opens at Scoti 47, Basket 38.
Down to half
One of them heads straight for the jump boost shrine, which the other one hates, because grabbing it seems to bring the blazes in. The chat line that gives this episode its name keeps coming: "[Sorcerer] My magic shall rain upon you!" Each time it does, they each run to their own side.
A bow hit sets the boss on fire, and from up on the stairs one of them can keep hitting it while it can't reach back. It never makes it more than about three steps up before it disappears. Then the chat changes: "[Sorcerer] My fire shall burn you!" and "FIRE PHASE: All mobs receive strength." Right under it: "You have reduced the Sorcerer's health to 50%."
Wither guys and poison spiders
The second half of the fight brings new mobs. Instead of zombies, "it's the wither guys," and poison spiders show up too. The walls they built last time help, and one of them, withered and burning, puts the fire out with water and hopes it didn't flow all the way down the stairs. Somebody comes in to help with four hearts left.
The boss takes a beating anyway. "He was just like, 'Ow, ow, ow, ow, ow.'" Later one of them brings up "like a 12 hit combo."
The ice phase
"ICE PHASE: All players are slowed." The slowness cancels out the speed from the boots, so the splash potions get a lot more dangerous. A mob with an Elemental Warden name tag is in the middle of it all.
Gear starts wearing out. A helmet is getting low, then armor and a sword too. One of them grabs the strength buff and lands a few hits with it. There seem to be invisible blazes as well, and the tip is to watch for smoke. "This is one heck of a boss, man. I'm digging it, though."
The lightning phase
"[Sorcerer] I am as fast as lightning!" "LIGHTNING PHASE: All mobs are faster." And with it: "You have reduced the Sorcerer's health to 25%."
It gets rough from here. One of them loses the jump boost, gets poisoned, and drops to half a heart. The jump boost argument comes back too. One side says it makes them more mobile. The other says that while one of them is off grabbing it, the other one can't do much. A helmet breaks, and somebody gets withered again.
Scoti goes down
They try to lure the boss back into their safer zone near the stairs. It ends up by a lava pool instead, and then the chat shows the next death.
That's Scoti 48. Asked whether the dropped gear survived, Scoti isn't sure: "I definitely was taking a full long lava bath." Basket grabs what was dropped: a stone pickaxe, a couple stacks of arrows and some swords. Then it's time to back off and repair before the gear breaks for good. The counter closes at Scoti 48, Basket 38. The monument is still at 6 of 16 crystals and 4 of 12 emerald blocks.