The 3rd-level Way of Shadow Monk ability, Shadow Arts, gives the monk access to certain spells. It reads as follows:
Starting when you choose this tradition at 3rd level, you can use your ki to duplicate the effects of certain spells. As an action, you can spend 2 ki points to cast darkness, darkvision, pass without trace, or silence, without providing material components. Additionally, you gain the minor illusion cantrip if you don't already know it.
RAW, it seems to say that material components are only waived for the spells that require you to expend ki points. However, RAI seems to suggest that you are duplicating the effects of the spells – not actually casting spells – and despite minor illusion being in a separate sentence it feels like it should fall under this umbrella.
Does anyone have any more idea about the true intention behind the wording?
Best Answer
Yes, a monk requires material components for minor illusion.
The wording of text is clear: You can cast darkness, darkvision, pass without trace or silence without material components; Additionally, you gain the minor illusion cantrip.
It doesn't say that you can cast minor illusion without material components. Nor does it say that all of the monk's Shadow Arts abilities gain this benefit, or all of the monk's spells. And nowhere in the rules does it say that monks can ignore the default need for spell components in general as described in Chapter 10.
The monk has gained a cantrip, a normal spell for all intents and purposes, and that follows the normal rules for spells. The other four spells ignore material components, but not this one.
This means you follow the default rules for spellcasting, which require spell components (or a spell component pouch). The simplest solution is to simply carry around or wear a piece of fluff.