As a DM I frequently will ask for ability checks on different skills. It's in the PHB and the DMG so it's barely a variant rule. For instance hiding a body might be Stealth(Wis) because your using your ability to understand hiding and light to find the best spot to hide the body and you aren't using your dex but it's more specialized then perception. The default sheet from roll20 doesn't do this option without building an entire skill for all six attributes for every skill. That's horrible. I consider it unusably bad because of this. I used the shaped sheet but it's edited by one person and it's good. I have to use a custom class artificer and it has no way to import some things so I assume it's somewhat out of date. I never figured out how to adjust the AC when magic items make it weird. It's fine but sometimes I feel the sheet has some quirks. What 5e sheets do people recommend?