Inspired by this question.
I have this idea. Take a creature that would be suppressed by the antimagic field, like an elemental or a celestial from conjure celestial. Since the spells creating one of those aren't instantaneous, the creature would be affected by the antimagic field. Then throw it through the field. What happens?
Will it fly through the field and appear on the other side or stop in the field?
These are the possible outcomes I can imagine:
- The creature is gone in the field but reappears on the other side as if the field had not been there.
If so, then what happens if the creature would hit someone or something within the field? Will it just fly through? - The creature stops moving on the first field in the antimagic field and returns there when the field is gone.
This question is not about whether you can throw a creature through a whole antimagic field. I can think of multiple ways for the creature to have enough momentum to traverse the field, for example throw it off a cliff and then there is a Antimagic Field half way towards the ground because a wizard is standing on a little ledge.
Best Answer
It stops inside the field.
This can be answered by the antimagic field spell itself.
Once a summoned creature gets winked out, the one and only condition for reappearance is "the space the creature occupied" -- past tense -- "is no longer within the sphere".
There is no real wiggle room here. What space was the creature was occupying when it winked out? Is that space still inside the AMF? It doesn't matter how fast the creature was moving or in what direction, the space it was occupying is what it is.
The real question, if you ask me, is this: When and if the creature/object reappears, does it retain its momentum, or does it reappear at rest with respect to the ground? (My personal answer is: It retains its momentum, because that's hilarious.)