Sustain doesn't matter on dominion as much as SR. A lot of items could be improved if they were changed to better reflect dominion's fast pased environment. I think it would be cool if any item with these stats on it is made cheaper and more accessible. Get the rejuvination bead out of Raduin's, and also lower the cost of the item. Make the GP/5 items stronger to warrent building them while giving up the passive gold gain. Be like the Americans and change philosopher's stone into the sorcerer's stone and have it grant health and mana instead.

It would free up a lot of dominion build paths.

Depends on what you're doing - Force of Nature is actually stupid good in bottom lane versus some matchups, the hp/5 on randuins certainly doesn't hurt if you don't get to go back and heal after every skirmish.

The great majority of the time hp/5 is completely irrelevant in top. you'll get <50 hp during the poke war at windmill, 50-100 for any poke wars during mid game, It is completely overshadowed by flat hp.

Wat? No, bot lane still exists.

MP/5 is really necessary O.o

The aura works off of your MP/5. MP/5 is a major reason people get Prospector's Ring.

What I don't even.

There should be better alternatives if you truly are in need of such things.

For mana regen for example, there could be an item that gives AP, but has a passive like this: if your mana pool falls below 20%, you are restored 20% of your max mana + 0.1% per AP.

FoN fills a certain niche, but I still don't see it getting built that much on this map except by a few bot lane champs, and as one of the final items in the pooters build.

I like to build FoN on AD malz. That plus a Frozen Mallet if I have time to build it and they never get away from me.