It can, if you really want it to, but expect your player to complain.Can the effects of one artifact override the effects of another artifact?
Example: a player has an artifact that makes them immune to Fear and Charm...
Can another artifact override that?
For the most part, I agree. If you wanted, you could rate artifact by power level, allowing more powerful artifacts to override lesser ones, but this is a lot of work.It can, if you really want it to, but expect your player to complain.
If they have immunity to Fear and Charm, but they end up getting Feared and Charmed anyway, then they might call shenanigans; and your only response is to say that you're the DM and it looks like they weren't completely immune after all. The player might be more accepting of this turn of events if you spend a lot of time foreshadowing how big and scary this new artifact is, or if they hear a legend about a great hero who carried the artifact they currently have, and how they were completely immune to mundane and lesser-magical fear and charms, but they were still affected by this even-more-powerful artifact.
I would say no, the first artifact makes you immune. If the second artifact had an effect, that specifically overrode immunity, that would change things, but as stated that seems not to be the case.Can the effects of one artifact override the effects of another artifact?
Example: a player has an artifact that makes them immune to Fear and Charm...
Can another artifact override that?
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(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.