It has its uses: decent damage for a cantrip and a panic button to get out of melee. But: a wizard (at least in 5.0) starts with 3 cantrips, gets a 4th at level 4, and a 5th doesn't show up until level 10. Sorcerers have one more, and Artificers have 2 all the way up until level 10 when they get a third. So: do you want to spend one of 3-5 choices on a cantrip you will (hopefully) rarely use? And by the time you have enough cantrip choices to maybe use one on a cantrip you hopefully won't need, you're also high enough level to have other options – a 5th level wizard, for example, has about 9 spells prepared, and dedicating one of those to some kind of panic button is a much lower cost than one of 4 cantrips..






