Hi, I brought gemstone armour (and overpaid by like 13m more than ge price)
and charged with 10k uncut dragonstones, and attuned.
however after killing abysall demons for a while not a single effect has occureed. (wearing 3 items from the set) is it really this rare? or is it due to using necro?
The Wiki (https://runescape.wiki/w/Gemstone_armour) lists the activation chances, and for three pieces and dragonstone, you only have a chance of 2.7%.
It is of course possible that Necro is the culprit.
I'd say to keep going for a while (and perhaps use more armour pieces to better your odds), and when absolutely nothing interesting happens while the chances of that are statistically too low, report it as a bug.
Kings Eastwood in
THE
GLOOP
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BWIAN
, and THE
WIKI
music by Trewavio Morricone