question about requirements on weapons

I have a quick question about the requirements on weapons. Let's say I have a sword that requires 12 in swordsmanship. Can I use attribute points to bring it to level 10 and then use a minor rune and a helm(with +1 in swordsmanship) to bring it to level 12? Would I be able to use it then or would I need to use attribute points to bring my swordsmanship skill to level 12?

I was confused b/c I have a Censor's Icon for my preorder item. At level 8 Smiting Prayers, it gives +7 energy. I used attribute points to bring Smiting Prayers to level 7 and then bought a Defender's Scalp Design (+1 to Smiting Prayers) to give level 8 in Smiting Prayers. However, the icon would not give me the +7 in energy. I had to use attribute points to raise my Smiting Prayers level to 8 before it would give me the +7 energy, making my Scalp Design useless for the requirement.

Is this only for pre-order items or would this attribute point only level requirement apply to the in-game weapons and shields as well?

can someone please explain to me if the requirement on weapons can be satisfied with runes and helms? thanks.