Maxperson
Morkus from Orkus
Assuming that a low level wizard actually has this. IME, most don't.
War Caster is just too good not to take as a caster. So assuming you are not a variant human that gets it at 1st level, you still get it at 4th level, which is still low level.
Unfortunately, you are assuming that the wizard is within 30 feet of the foe to begin with. Many encounters do not start that way. If the wizard hangs back, which many players do with squishy wizards, then yeah, most of the time, s/he will spend some or all of the PC's movement just getting in range and the front rank of melee PCs will often provide a cover bonus. Always? No. But, often enough. And even when they don't, the wizard is still getting within 30 feet (normal movement rate) of a foe.
No. I'm not assuming he's withing 30 feet. I'm assuming he's withing 60 feet if he's going to cast the spell. Move 30 feet to 30, then cast the spell. If he's not within 60 feet, he casts a different spell. Sometimes being farther than 60 feet is going to happen. That doesn't mean that Witchbolt isn't going to be useful a lot of the time.
It's somewhat rare that the enemies are behind or to the side of the front rank so that a PC wizard has an unobstructed view and none of the other NPCs can easily get to the wizard. It happens, but the very fact that it happens means that the wizard is often even more susceptible to counterattack.
Sure. It may be rare that the enemies are behind or to the side of the front rank, but it's common that the wizard can move sideways and get an unobstructed view, then move back.
You are also assuming that the player of a low level wizard would want to prep a witch bolt on a given day. It seems like it would often just take up a precious prep slot.
The entire point of this debate is to show you that there are different perspectives out there. Just because YOU hate the spell and think it's useless, does not mean that everyone else does. I can easily see the spell being good enough for use under commonly encountered circumstances.
Yeah. Not all low level PCs have feats or the exact feat needed, but if you want to make up perfect scenarios where Witch Bolt is useful, I guess you can try. Course in the scenario of actually using witch bolt, again it wouldn't be wasted on goblins. Typically it would be used on a tougher foe with a lot of hit points in order to whittle that foe down. Given that, many foes with a lot of hit points within 30 feet of a wizard can eat an OA in order to go attack the wizard (since not all low level melee PCs have Sentinel). Foes with a lot of hit points often do more damage than normal as well. For a PC with a 16 Int, it doesn't sound like an intelligent strategy. YMMV based on PC abilities and the exact scenario.
It doesn't require a perfect scenario. It requires a common scenario. Wizards commonly have War Caster as it's an amazing feat for a caster to have. Wizards are commonly in circumstances that they can walk sideways to get clear views of enemies and then back again.