lots of questions.

Ok, for my Lords of Magic map, i have alot of abilities/features/etc that were in the original game that i would like to replicate in my wc3 map.
take a look at this:
http://torrentstrike.no-ip.org/forum_viewtopic.php?10.8
(56k WARNING! lots of images!)
this is a screenshot-list of every item in Lords of Magic special edition.
alot of these things i have some idea of how to do, but others i dont know how or have forgotten...
how to add to a specific unit's attack range, then take it away when they drop the item?
also, increasing ranged attack damage only? i would have to make the unit use two attacks and have one be ranged, the other melee, correct?
again, how would I boost a ranged attack damage, but have it be reverseable and only for a specific unit (ie, upgrades arent an option)

i think i know what to do for these:
luck = very small critical strike + evasion
movement = item move speed increase
sight = item sight range skill
+resources/day = done with triggers

but these i dont know how to do:
+ranged damage
+unit range
+faster hit recovery
+resistance to a specific faith's (player's) magic attacks

thanks for help,
Anarki

Im not sure but with ranged attack, don't claws work?