You create a sound or an image of an object within range that lasts for the duration. See the descriptions below for the effects of each. The illusion ends if you cast this spell again. If a creature takes a Study action to examine the sound or image, the creature can determine that it is an illusion with a successful Intelligence (Investigation) check against your spell save DC. If a creature discerns the illusion for what it is, the illusion becomes faint to the creature. Sound. If you create a sound, its volume can range from a whisper to a scream. It can be your voice, someone else’s voice, a lion’s roar, a beating of drums, or any other sound you choose. The sound continues unabated throughout the duration, or you can make discrete sounds at different times before the spell ends. 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. The image can’t create sound, light, smell, or any other sensory effect. Physical interaction with the image reveals it to be an illusion, since things can pass through it.
SRD 5.2.1, p.149 · CC BY 4.0
Try this spell in RollQuest
Cast Minor Illusion on a real battle map. Pick a caster and a target and RollQuest plays the effect for everyone at the table. Free to start.
Run Minor Illusion through our free DnD character sheet
Give Minor Illusion to your character and cast it straight from the sheet. RollQuest rolls the dice with your spellcasting modifier, posts the total in chat for the table and keeps count of your spell slots. See how our DnD character sheet works, for 5e and 5.5e.