

A cantrip that’s as effective as “power word kill” on mundane folk? Use 55 times to kill a dragon? How did I miss this?
As a DM, I’d have to implement a house rule that every such insult must be unique, as it is magically bound to the target at that distinct moment in time. And that goes for failures as well as successes: each use burns that phrase forever. At the very least this goes if used repeatedly against the same target. Besides, a good bard should be able to cook up fresh material.
As a totally cheap-ass DM, my recommendation is to find some printable DnD tokens that you like and glue them to things like bottle-caps, or small round bits of wood (like chunks off of a dowel from the hardware store). There are a bunch around. If you want to splurge, take the bits you want somewhere you can pay for a quality color printout.
Personally, I’m a fan of these generic tokens by “Acquitt”. They’re useful for every encounter: https://www.reddit.com/media?url=https%3A%2F%2Fexternal-preview.redd.it%2FV7egJC87nsVUTybGs5E3DwvRihmz6KduUfniSJk6Fec.jpg%3Fauto%3Dwebp%26s%3D57f11a74865814f31c7236adb1555a43529ca355
I glued these to some sculpey discs of the same color. I also used transparent binder sleeves for HP tracker sheets, so I could use dry-erase marker. Lastly, my battle map was a large (but cheap) poster frame with 1" grid paper inside1. This let me use those dry-erase markers to draw terrain.
1. For more thrift, some wrapping paper brands print a barely visible 1" grid on the backside. Some quality time with a ruler and pen can turn that into something useful.