No reason for a feather fall spell when you can find level 1 ff boots/gloves etc , the attribute should still be rare and not appear till at least level 5 items. That shan-to-kor ring should be the only place you can find an item at low level with ff.
You cant CRAFT ff on items till a high level,why would dropped loot be any different?
No reason for the water breathing spell when you can find level 1 water breathing items, theres a certain shadow crypt which needs it and thats level 8. so again water breathing should only appear on level 5 items+. Finding clickes with it should be more common than 100% water breathing.
I like what you did to poison recently, made neutralize poison lesser duration and proof against poison only work against natural poisons.
Putting "immunity" to mechanics in the game is bad for it. Not only that but you miss out on all the mechanics that these things allow. Whats the point in wondering if you'll make the jump if you're going to FF every time. no risk, no fun.
I noticed that some levels have some places where FF is a bad idea.
You need to retractively change all low level ff items (expect the named ones) into FF clickes (3- 5 uses per day). and make them a rare useful thing again. That way the savants will also appreciate their ability to do that without the items/spell.