Best Late-Game Magic Items?

[Furry Eskimo]

For context, I'm actually a summoner, but I keep a little of everything in my inventory. For a long time I've kept a Razorblade Typhoon on hand, since it can very effectively target enemies. I know there are more damaging weapons, but most require a ton of stamina or require a clear line of sight, or might-management for targeting.

I've been considering using either a Nightglow or Nebula Arcanum, but am relatively unfamiliar with these weapons. Can anyone with more experience in magic weapons offer their opinions please?

[Crazyclay]

The bubble gun is the best for a single target, but otherwise the razorblade typhoon is really good to begin with. If you're post moon lord the best one is last prism.
Edit: The razorpine is one of the best weapons, with a longer range than bubble gun, but slightly lower dps

[wcc]

Razorpine is not homing and still has a limited range. As Nebula Arcanum, it's nice in events, but if you're up against bosses, I'ld stick to Nightglow, Razorblade Typhoon or Nebula Blaze for their home abilities.

[Furry Eskimo]

So it’s basically a matter of preference huh? They all seem about the same, with a few differences that make them better/worse, situationally.

[wcc]

Well, imo it's a matter of the situation and of preference. Sometimes you want something nice against the mobs (e.g. vs the Pillars), sometims you want something homing (e.g. against the Empress of Light). But yeah, I think some items are just nice alternatives so you aren't forced to get all the drops which are possible.
Nightglow vs Razorblade Typhon, for example. I'ld say you can use whatever you find first. Similar with Bubble Gun vs Razorpine. They feel a tad different, but in most situations it's just whatever you've get your hands on first.

[Celator]

Razorblade Typhoon is the most convenient weapon in the entire game, outside of the Zenith of course, in the sense that you can spam it at any time and kill just about everything on the screen with zero effort. In this department, only the Zenith even challenges it.

When it comes to bosses and events, though, you'll find plenty of weapons that outperform it due to their higher DPS. Nebula Blaze can be thought of as a more powerful version of the Razorblade Typhoon with the downside of a much higher mana cost, as well as requiring a bit more aiming since its homing is not quite as strong. Nebula Arcanum is kind of like the opposite of the Typhoon, being difficult to use due to its slow projectiles but capable of some of the highest DPS in the game if used right. Both are very good and the Blaze is one of the best weapons to use against the Moon Lord, while the Arcanum can shred just about everything else.

The Nightglow and Stellar Tune are also both really good. Nightglow functions similarly to the Nebula Blaze but with better homing in exchange for a slightly higher mana cost, and Stellar Tune is kind of like a Bubble Gun with more (but still limited) range and lower (but still high) damage.

[Kilo]

NEBULA BLAZE

[Furry Eskimo]

Thanks a lot, this has all been very helpful.
The entrance to my base is a vertical hole in the ground that gobs can’t enter (because of reasons). This helps explain why I gravitated towards the typhoon, since I’ve usually been able to fire it up and out of the base, and have it bounce around attacking enemies. These other weapons are likely better when used in the field, in a more open environment. My lack of mana may also explain why I use the typhoon, since I can spam it considerably more than these other weapons.