Vigil Icons — Heroes 1–20 (free)
https://www.vigilicons.com

Twenty stroke-first, rounded-corner icons. 24px grid, 1.25px stroke, round caps and joins, no fills, no words.

png/   the 20 icons at 256 x 256, black on white
vigil-icons-heroes-sheet.png   all twenty on one sheet, with 24px and 16px rows

SVG, icon font and Figma versions land with the final Set 01 files.
License: see LICENSE.txt. Use them in anything you make; don't resell or redistribute the files themselves.
Pairs with Vigil, the free font: https://www.vigilfont.com
