1: Change Legendary’s to Unique’s. Epic’s should be called Ethereal and just a better version of the same base item. Small changes like this will win back so much faith from the Diablo community.
2: Remove durability from all items in the game.
3: Make some of Uniques/Sets of all levels have benefits/abilitys that make them useful no matter the character level. Examples, SOJ gave +1 to all skills @level 29,Chance guards gave up to 40% magic find @level 15. People used them late game even tho it was a low level item. This kind of item design will add to build diversity.
4: Never do something like “Primal items”. Guaranteed perfect rolled items ruins the game very quickly and ruin a games economy.
5: Magic find, make it a randomly rolled stat on Rares/Magic but very worth while for extra drops. If you use Magic find it is a Stat/Damage/Defense compromise.
6: Rare items must have end game potential. This is extremely important, So that items are worth picking up and getting excited for.
7: Random loot, not personalized drops for your character.
8: Private loot and group drops together, first come first serve for group items. Magic find from all in combat with the monster at death effect all group drops.
9: Change leveling system to 1-99. Do not use a paragon system, set a goal of 99 or 100 that is extremely hard to reach but not impossible. Make max level requirement for gear in the 70/80/90 range depending on the item.
10: Do not change the max level with expansions. When you do this all items from the previous max level become irrelevant and lose all value. It makes players feel like the work they did before the expansion is worthless. Make expansions add build/item variety for character diversity.
11: Make gold valuable. Give us a reason late game to not give it away willingly. Example item gambling.
12: No trading limitations except Ethereal versions of items are trade-able once.
13: Sockets for items up-to 6 sockets.
14: Runewords must be more than 2 runes, I suggest a 6 max. Do not let Runewords be applied to Rare/Magic/Unique items.
15: Runes should be rare and powerful, Runewords power should scale with each Runes rarity.
16: Jewels and charms need to return. As well as their recipes in the Horadric Cube.
17: Ethereal items If found as a white item, are usable for runewords.
18: White items that already have a bonus like %Enhanced Defense/%Enhanced Damage/+ to a Skill or Skills should carry over to the Runeword used. Like if I find a 4 socket Ethereal sword with 10% Enhanced Damage. Then socket a Runeword that gives 50% Enhanced Damage, the outcome would be 60% Enhanced Damage as well as the benefit of Ethereal which adds to the base sword’s damage.
19: Horadric cube must return, recipes and all. Remove the Kanis cube, It was pure disappointment.
20: Skill tree points should reward synergy’s, So certain skills buff one another like Diablo II.
21: Increase complexity of Talent system, Use Talents to improve class diversity.
22: Put light radius back in the game, it allows monsters to disappear into darkness adding to the immersion.
23: Increase party size to more than 4. I would suggest 6-8 players.
24: Keep stats(Str,Int,Dex,Vit). Remove the simple Attack/Defense system, That feels like a over simplification of these mechanics.
25: Faster hit recovery %, Faster cast rate %, Damage reduce %, Defense vs missile, Crowd control %. These add to the complexity of combat, which makes Diablo II so great.
26: Add items that have negative aspects but can roll mods that normally don’t roll for that slot. Example circlets from Diablo II have little defense but can roll mods not found on helms(Movement speed %, Attack speed %, + Skills).
27: Remove as many cool-downs on skills as possible, They slow down the game and make a end game character feel weak and sluggish.
28: Remove “Secondary” item mods. Just roll all stats randomly with limitations of which items can roll certain Affix/Suffix. Adding to item diversity and making finding everything you need on gear difficult. This encourages item trading heavily.
29: Do not put All Resist % on most items. Make us find Poison, Fire, Cold, Lighting resist individually on items more often. Keep All Resist % in the game but make it rare and sought after.
30: Hardcore PVP - Permanent death, drop carried Gold/Inventory/Equipped items. Softcore PVP - Drop carried Gold. PVE death 10% xp loss/Gold drop.
31: Hostility button usable anywhere, Add a warning/countdown, Allow loot corpse for hardcore. If you kill someone on Hardcore you get their Items/Gold/Inventory.
32: Potions not on cool-down but replenished quantity with gold. Require no inventory space just stack on bar up-to 100. Add an item mod that replenishes x potions over x amount of time.
33: MTX for Banners/Portraits/Wings/Clan Stash/Clan halls only. Pets and unicorns/rainbows don’t belong in the dark world of sanctuary.
34: Cow level. Make it require a recipe again with the Horadric cube.
35: Make sure White/Magic/Rare/Unique and Ethereal versions of these items don’t rain from the sky off every Unique Monster/Elite/Champion.
36: Make combat hard and engaging, Don’t allow killing the whole screen in one shot. Allowing the combat to require thought and make the player feel accomplished when getting stronger, Because the difference is apparent and felt in combat.
37: Make random affix types effect the color of gear, Example life mod makes them red or all resist purple as in Diablo II.
38: Give each piece of gear 3 different visual appearances, So characters look unique more often.
39: Transmogrify could allow you to switch between the 3 visual types of each item. Allowing customization of character appearance.
I Absolutely feel like Diablo needs to get off the Road to Azeroth its been on since Diablo 3 and get back on the Highway to Hell where Sanctuary belongs!