Specifically, I'm thinking Shocking Grasp as L1, to trigger Heart of the Storm (Sword Coast Adventurer's Guide):

[…] whenever you start casting a spell of 1st level or higher that deals lightning or thunder damage, stormy magic erupts from you. This eruption causes creatures of your choice that you can see within 10 feet of you to take lightning or thunder damage (choose each time this ability activates) equal to half your sorcerer level.


No. There is specific sage advice on the matter:

@JeremyECrawford like most spells can a known cantrip be cast at a higher spell slot lvl. Aka sacred flame lvl 1 for 2d8 radiant dmg
— redwoodguardian (@redwoodguardian) August 24, 2015

No, since cantrips don't use spell slots. https://t.co/MKpg8oozyf
— Jeremy Crawford (@JeremyECrawford) August 24, 2015


Spells can take on a higher level when you choose to cast them using a higher level spell slot. Cantrips don't use spell slots. As such their spell level is 0 and you can't cast them at a higher level.

  • 10
    \$\begingroup\$ For this power in particular, it would make abundant sense to tie it to a limited resource like spell slots. \$\endgroup\$ – SevenSidedDie Dec 13 '15 at 9:41

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