kigmatzomat
Legend
Technically RAW would still stop those illusions on an attack as the arrow passing through them would be physical interaction and would show them to be illusions
Ah, but if the caster uses their action to Animate the illusion (which is able to sustain a conversation per Major Image) the illusions can dodge said arrows.
Which gets us to the nuhuh-uhuh-nuhuh loop of the archer and caster arguing if the illusion can dodge arrows. Rule hole! (I propose using the spell save DC as the illusions AC. Attack with disadvantage if the illusion is not a solid or for whatever reason the weapon passing through is plausible, e.g. arrows vs tall grass).
Yes, I think it's dumb too, but such is RAW sometimes. Then again, RAW keeps you from getting 4th level spell effects with 1st level spells. So maybe they were onto something and it was intentional
A spell, concentration and the caster's action each round. That's a non-trivial part of the illusionist's action economy. They spend their actions animating the illusions, so aside from Reactions and Bonus actions, they aren't doing much besides puppeteering illusions.
What happens if you use Major Image to make a scent? Can you physically interact that away? No, because they only said physical interaction applies to "image" . Why? The presumption is images are of solid objects in a game where intangible things exist.
If you Major Image a ghost, a person can stick their hands inside it and can feel unpleasant-but-not-damaging cold while they smell grave rot. How would that break versimilitude?
It doesn't which is why it's a hole in the rules. This would get the disadvantage on physical attacks against it in my propsed rules.
There's also nothing about being "assisted" on a Study action by being told something is an illusion, without someone else using the literal Help action. Imo, someone a character trusts saying "that's an illusion" gives advantage on the Study/attack roll.