Well, I finally was able to beat For the Worthy Master Mode, which feels great because just a couple years ago I thought I'd never be able to beat the Moon Lord on Classic. This run took me about 60-70 hours and was mostly Ranger. I thought I'd record any changes for For the Worthy. I suspect many will find it either uninteresting or unhelpful, but some might like it!
King Slime: Used musket with Gold armor. A high row of platforms, a jump in a bottle and a hook helped with manueverability, and a Flinx Staff for the slimes.
Eye of Cthulhu: Used musket again. The really nice thing is that Magiluminescence+Hermes boots lets you outrun the charge a lot easier.
Eater of Worlds: I died a ton to this boss. Had to find the tinker, brew potions, and use Necro Armor with both Unholy and Jester's arrows to get it to go down. Fought it above-ground since it spits poison underground as well in FTW. Used Slime Mount to bounce away sometimes but it occasionally despawned when doing so. Really tough. It might have been getting Vampire Frogs that finally did it.
Goblin Army: Weather Pain is phenomenal here, and minions too, of course. Made a dirt house with little slits to fire musket through.
Deerclops: Bow and fire arrows, but Vampire Frog really destroys this boss, since its grounded, slow and has a big hitbox. I made a platform a bit above his head and ran in one direction, then jumped backwards when he did the ice throw. The extra hands are a little tough here, but this boss didn't receive many changes in FTW besides more health, so this was an easier fight.
OOA tier 1: Jester arrows are OP. Weather pain was great here.
Skeletron: Had to fish Fledgling Wings from a Sky Crate to win this one. Used Molten Fury, but high mobility with magiluminescence/wings/rocket boots/shield of cthulhu really helped.
Queen Bee: Died a ton here. I think I had to get a hellwing bow for this fight; really nasty. Fossil armor helped. I attempted this battle even earlier.
Wall of Flesh: Fought almost 20 times. In the ends, I used an unreal Hellwing Bow for the first 90% and finished it off with a ruthless Star Cannon (and ammo reserv potion). Even then I got dragged by the tongue.
Queen Slime: Very easy with a skybridge spanning the world and a goat skull. Used cursed darts and dart rifle for most of the fight with some Onyx Blaster during the flying part.
Destroyer: Harder than I thought it would be. Nimbus rod kept releasing probes too fast. Used crystal darts to hit probes, hid in a box in the sky with open top.
OOA tier 2: I had saved up for a tier 2 sentry so starting was easier. Dart Rifle was great (both ammo types). Saved up for Huntress Armor. Had some trouble at first, and tried wearing Spider Greaves, but it wasn't worth it.
Pirate Invasion: Relied mostly on Queen Spider staff and spiders while hiding in a box with holes to shoot darts out of.
Twins: Used same skybridge as Queen Slime with Megashark and crystal bullets. Used Amphibian Boots for first half of spazmatism then switched to goat skull for second. Cheesed Retinazer with a house.
Skeletron Prime: Fought over the ocean, thinking it would limit destruction, but finished the fight with all my beach houses gone and the ocean about 20 blocks too low (fortunately had a bottomless water bucket from doing 40+ quests). Used Megashark and Cursed Darts (maybe Daedalus Stormbow too? Can't remember).
Plantera: Used Phantom Phoenix with Chlorophyte arrows. Had tried Chlorophyte armor with Yelets unsucessfully. Had a long tunnel with a teleporter at the end to reverse (for second half). Took many tries.
At that point, I found a spectre staff in the dungeon and switched to mage with spectre armor.
Solar Eclipse: Didn't really need much from here, but spectre staff helped me with getting moon stone and neptune shell. Mothron wasn't too bad with staff.
Pumpkin Moon: Spectre staff was great, especially healing with spectre armor. It was tough to get far, but I was mainly shooting for a good summon (which I didn't get), 2 necromantic scrolls (which I did) and a witch's broom (also got). I then fought it 10 more times, but more on that later. Used terra blade with chlorophyte armor a couple of times, too.
Golem: I had a hard time! He was tiny but jumped like a maniac. Also, the temple was massive. I built a house right underneath the throne room and put my respawn there. For the first time ever, I actuated a huge chunk of the temple so I had more than a screen's worth of arena for Golem. Used Spectre Staff, and tried the heat ray and boulder staff he dropped while farming him.
Martian Madness: I used the boulder staff a ton. Something dropped a Charged Blaster Cannon early on, which really changed the game. It was so fun blasting stuff away. Farmed for Xeno Staff.
OOA tier 3, first part: This was incredibly hard. I have found before on Master Mode that you can't really beat Tier3 without using Tavernkeep's armor from Tier 2 (at least, it makes it a lot easier). Unfortunately, my best crowd control weapons (blaster cannon and boulder staff) didn't match my armor (ranger). So I tried what I had (Candycorn rifle, Phantom Phoenix, Stynger, etc.). I had saved up for a tier 3 explosive trap and used a sentry accessory, a papyrus scarab and necromantic scroll to boost summon damage. But ranger still wasn't cutting it, so I tried Spooky Armor with xeno staff and dark harvest (for most enemies) and morning star (for ogre). This got to Betsy, but lost against her.
Duke Fishron: Actually not bad. I died the first time, but the second time I used Spooky Armor with xeno staff and morning star. Low defense doesn't matter since you're dead if he hits you anyway. Dropped Tsunami, my main weapon for a while.
Pumpkin Moon again: At this point, I used Tsunami to farm Pumpkin moon using Chlorophyte arrows so they were guaranteed to hit something. After 10 times (including a trip to another world to grab some stored hallowed bars after farming the destroyer one too many times), finally got stake launcher, the only ranged weapon (besides Eventide) that can handle OOA.
OOA tier 3, Betsy: The Stake Launcher was incredible against the ground troops, really impressive (this is literally the highest difficulty and they melted away, even Drakin). I was using a molten quiver and a magic quiver with an avenger's emblem and the summoning accessories. I still couldn't beat Betsy, but farmed up to wave 6 to get Red Riding armor. Then it was all over; I put all but 6 traps (3 on each end) near the middle, since that's what really does damage to Betsy. I used Tsunami with Chlorophyte on her (with 5 UFOs from summoning potion, scrolls and bewitching table). I died, but the traps finished her off.
Frost Moon: Usually really important for me, but FTW made me drop a lot of things I usually love (rockets, north pole, flamethrowers) and other things I had were already better (Charged blaster cannon, for instance.) Used Stake Launcher and chlorophyte/venom tsunami. The toy tank was, as always, very fun.
Lunatic Cultist: This is where I failed. I had tried Empress of Light multiple times but just couldn't win (even before Duke Fishron). So I used pillar weapons on her, getting through the Cultist first. The cultist was surprisingly tough, and I used Venom tsunami.
Empress of Light: I tried so many things, including buying and tediously placing a couple thousand bubbles with water in a grid to make fishron mount powerful. But it turns out I've trained myself to use the slower witch's broom, so fishron mount failed. I ended up bringing in crimson seeds to use both wrath and rage potions, used stardust cells and phantasm. Really wish I didn't have to cheese, but this is just too hard to me (FTW doubles attack speed in both stages).
Moon Lord: Surprisingly easy. Nothing is boosted here but health, not even contact damage. Used Shrimpy Truffle (and my grid), alternated between the really good potions/philosopher stone and warping to nurse. Used phantasm for top eye and very distant vortex beater for rest. Used stardust cells since they add on extra damage every time you hit (up to a cap on speed) and don't get lost like dragon.
Overall Bosses: The hardest bosses to adapt to, for me, were Wall of Flesh (faster, harder to hit, much healthier), Eater of Worlds (bigger, healthier, spitting more poison), and Empress of Light (so fast in attacking). Plantera was hard but is always hard.
Overall non-bosses: It's really polarizing. The contact damage is insanely high, but everything else is the same. So I lost to, for instance, empress of light by having running into a werewolf and instantly losing 300+ health. Green slimes could take off 1/5 of my endgame health and frequently did. Wyverns killed me so many times (I had over 400 soul of flight and a wyvern banner at the end).
The lava pools were cool, actually, especially once I got terrasark boots. The bombs from trees helped with mining from time to time. And red potion was useful for a couple of boss fights (although I don't think I ever won the first time with one). The fast mining and big ore veins were very helpful. Every demon being a voodoo demon was bad (deaths) and great (easy to fight WoF).
I used potions a ton, and made herb farms for the first time and tons of fishing quests.
