1,Did you know that the speed of attack on gears do affect the speed of attack of werebears? It's a popular belief that it doesn't, but in reality, it only happens in a lesser degree than the weapon's attack speed. (Depending on the weapon's base speed and speed increase) (See the comments below on this, it's been modified in D2R since the original game according to Chippings's note).

2,Antidotes, Thawing, and stamina potions are stackable. Consuming one causes an effect that lasts for for 30 seconds. If you drink ten, it will cause the effect to last for 5 minutes.

3,Maps are based on particular pattern that can be trained to use them to navigate. (With some exceptions, like the Catacombs levels 1 and 3 ) If you're looking to know more about them, Mr.Llama has very nice serie of videos titled "Diablo 2: Speedrun Tutorial Part X".

4,Walking in D2 isn't useless While running your defense will be decreased to 0 and blocks chance by 2/3. Learning how to switch between running and walking off during combat can help save your life.

5,Health and Mana potions are able to cause a crit (Heal for twice what you have) Your Vitality in HP or mana's energy determines your chances of recovering double the normal amount of Points you get from a Mana/Healing Potion.

6,You can sell and repurchase items with stacks in order to increase their supply. (Just be sure that there is enough space in the shop to store the item.) This is particularly useful in the case of jav zons and throw barbs (beware it's dangerous to try this regardless, and DO NOT CONDUCT with ETH-based weapons)).

7,A hit that is one-third of the HP will put you in the animation of Hit recovery.

8,The tombs in Act 2 are always at the same place. The ability to recognize them will allow you to navigate in the right direction when you enter the summoner's portal. There's always a tomb symbol missing in front of the summoner. It's the symbol for the real tomb.

8 Tips for you, hope helpful. And i recommend you to buy d2r items & cheap d2r ladder items on p2pah.com, great online shop.