cantrip

noun3

1. •
   A spell or incantation; a trifling magic trick.

   • Coffins stood round, like open presses, That shaw’d the dead in their last dresses; And by some devilish cantrip slight Each in its cauld hand held a light […] — 1791
2. •
   A minor spell, typically one that can be cast without preparation.
3. •
   A wilful piece of trickery or mischief.