It's strange how you translated:
"You can't use combined artifacts, which means you can't have one artifact mixed from a few that gives some additional bonuses from wearing a complete set. If you find a combined artifact, you can use one relic (4th-level artifact) from it or all artifacts from lower levels (1-3: treasure, minor, major). You can't use Angel's Wing, Boots of Levitation, and the Armageddon spell while wearing Armageddon's Blade. Players are not allowed to use relic artifacts (applies only to templates that don't generate relics and utopias normally, especially Balance, Balance PC, Panic). All mentioned artifacts can be traded for treasure/money/experience."
Then you get the phrase that you can only wear 1 relic.
A normal translation, in my opinion:
"Combined artifacts are prohibited. They cannot be worn as a set, and you cannot receive their additional bonuses. If you find a combined artifact, you can only use 1 relic from it (as if you simply found a relic) or use any of the non-relic artifacts from the disassembled combined artifact. Angel's Wing, Boots of Levitation, and Armageddon are banned from being used with Armageddon's Blade. The use of relics is prohibited (only for templates where relics and utopias are simply not generated - Balance templates (apparently, there are several of them) and Panic). All listed artifacts can be traded for resources/experience."

Just saying, I know English. )))