Character concepts. Hard to come by a good one these days yea, so a starting point may come of as generic. but for the love of GOD, DO NOT MAKE ANY MORE "PROTECTOR/DESTROYER OF ANY STRUCTURE (I.E MULTIVERSES)" ANYMORE.
These Ideas peaked with Ink and Error, now its done. Same with "God Of (Whatever structure)" unless is not a multiverse, Universe, Hyperverse etc, Peaked with 404 or someone else i really dont know.
Sans character concepts? STOP. Sans is the STAPLE of a weak enemy, and then people wanna slap that on their character ideas. USE SOMEONE WHOS STRONG LIKE LITERALLY ANY OTHER MONSTER. EVEN FROGGIT HAS BETTER STATS.
Last but not least, Sprites. I would EXPECT the idea of stealing the SANS SPRITE and REPAINTING it was done, but no. Frankly i prefer people actually use the sometimes rewarding Ai art generators then see another god damn sans repaint.