I looked in the treasuretable and they do have something in there for Luck 1, 2, 3, 4, 5 and 6. Basically each level is supposed to give more stuff like level 1 is just gold, 2 = goldbig, 3 = randomlootsuper, precious, goldbig, 4 = weaponmagic, armormagic, ringamuletbeltmagic, etc.
Sorry about technical jargon, I learned some of the ways to mod DOS1 and some stuff seems the same in DOS2. I haven't played around with treasuretable in DOS2 but have tweaked itemcombos to fix some crafting stuff.
But back to the point, even though I see the luck stuff in treasuretable I don't think it is implemented because even with luck 10 in a run through, I didn't see clover one time. And didn't get any magic items in normal containers (like barrels and crates, obviously chests have magic though), DOS1 I got magic items frequently (maybe 20%) with high luck.
I think DOS1 EE worked correctly, where you couldn't save scum containers but Luck still worked. DOS2 still stops save scum but Luck appears not to work.
