- Making a hellbridge to face the WoF. It's easy on normal mode, but on Expert it's sometimes a pain. You've got a minute of freedom while building until you get overwhelmed by Demon projectiles and these annoying Hellbats. While they're weak, they are very frequent and deal about 40HP with Molten Armor. Oh, and "On Fire!" debuff. Thanks, but no.
- Searching for Adamantite/Titanium. The first one is easier to find, because it's red and it's much easier to notice while mining than Titanium. Still, they're rare enough to make mining pretty tedious. They need 5 ores a single bar, 30 for a forge and about 40-50 for a full armor set. Thank you Re-Logic for the fishing mechanic, I can get some this way.
- Messing with RNG. I've got bad luck with everything that occurs randomly. Often I get something I don't need. A good example is when I wanted to get some extra Adamantite for Adamantite Greaves. I fished like a hundred of crates in Hardmode and... not even any one! After some time I decided to go mining, so I could get the rest for full armor.
- Getting killed out of nowhere (example: I'm flying with wings to avoid a pit of lava, then I got stoned by Medusa, falling directly into lava. At least I didn't die because I grappled myself out of there, but I lost A LOT of health due to this).
- Getting almost done with a boss and suddenly dying, like having Skeletron Prime almost dead, but the night ends and I get K.O'd by him. The same with ofher bosses. They have low health, I'm almost done, but I got overwhelmed by something and die.
#bad luck.