Can minor illusion go through walls?
You could decide that "it must be no larger than a 5-foot cube" means it must be no longer than 5' in any dimension, rather than it must no be larger than the volume of a 5' cube. That rules out most doors and walls, as well as any character over 5' tall.
Can you use minor illusion as verbal component?
I do like that there's no restriction on how the sounds are made. That implies that a skeleton or zombie character (neither of whom can speak) could cast spells with verbal components by using Minor Illusion. How big can a minor illusion be? It needs to be 'no larger than a 5-foot cube' but that doesn't mean that it can't be taller than 5 feet, necessarily. That depends on how your GM is defining 'larger'. A 5ft cube of volume is quite enough for most human-y races.
How long does minor illusion last?
It only lasts a minute, so it won't be around forever. A minute is a long time in combat, and a pretty short amount of time outside of combat. Noises actually have a bit more latitude in that they can change during the 1-minute duration. What level is polymorph? Your scouting and combat forms may change as new options become available, but since your disable form should generally be CR 0 it probably won't change much. Keep in mind that the lowest level you will be able to cast Polymorph is level 7, so you generally won't look for combat forms below CR 7.3 days ago
Is illusory Dragon a good spell?
Many might think it is not as good as other spells. But this spell even with a DM that does not like illusions is great because the rules say that even if they figure out it is an illusion it only gets to save against its breath weapon with advantage. Is Minor illusion a static image? No, minor illusion is a static image that cannot be moved
The description for the minor illusion cantrip (PHB, p. 260) says this about creating an image: If you create an image of an object–such as a chair, muddy footprints, or a small chest–it must be no larger than a 5-foot cube.
Whats the difference between minor illusion and prestidigitation?
For one, Prestidigitation is no illusion spell, but a transmutation. That means that the effects are real. The only illusory effect you could achieve with it is an image that would fit inside your hand, and that only lasts until the end of your next turn, so 12 seconds at most. Can a Polymorphed barbarian rage? Too Long; Didn't Read ( TL;DR 📖) A barbarian suspends any active rage and may not enter a rage while polymorphed via a polymorph spell.
Are changelings immune to polymorph?
No, they are not shapeshifters
Changelings can only change their general appearance, they can't completely change their form.