Thanks @scalewinged , @Nitz and @Stealthmaster !!
I replaced my
Deadfall

Deadfall
Heavy Belt (4)
Defense: (135 - 159) to (178 - 210)
Required Level: 7
Required Strength: 36
Item Level: 19
2% Chance to cast level 2 Shower of Rocks on Kill
1% Chance of Crushing Blow
+(24 to 46)% Enhanced Defense
+(16 to 25) to Strength
Lightning Resist +(11 to 15)%
Socketed (1)
Defense: (485 - 551) to (616 - 700)
Required Level: 24
Required Strength: 62
Item Level: 36
2% Chance to cast level 4 Shower of Rocks on Kill
2% Chance of Crushing Blow
+(69 to 92)% Enhanced Defense
+(36 to 45) to Strength
Lightning Resist +(21 to 25)%
Socketed (2)
Defense: (1270 - 1400) to (1595 - 1758)
Required Level: 41
Required Strength: 218
Item Level: 51
2% Chance to cast level 8 Shower of Rocks on Kill
3% Chance of Crushing Blow
+(115 to 137)% Enhanced Defense
+(56 to 65) to Strength
Lightning Resist +(31 to 35)%
Socketed (2)
Defense: (1918 - 2095) to (2403 - 2626)
Required Level: 50
Required Strength: 436
Item Level: 85
2% Chance to cast level 12 Shower of Rocks on Kill
4% Chance of Crushing Blow
+(138 to 160)% Enhanced Defense
+(66 to 75) to Strength
Lightning Resist +(36 to 40)%
Socketed (2)
with
Wormtongue

Wormtongue
Light Belt (4)
Defense: (53 - 58) to (71 - 78)
Required Level: 3
Required Strength: 26
Item Level: 1
(31 to 50)% Bonus to Attack Rating
Adds 5-13 Poison Damage over 2 seconds
(2 to 4)% Life stolen per Hit
+(18 to 29)% Enhanced Defense
+(11 to 15) to Dexterity
Socketed (1)
Defense: (214 - 231) to (259 - 279)
Required Level: 21
Required Strength: 55
Item Level: 31
(71 to 90)% Bonus to Attack Rating
Adds 19-50 Poison Damage over 2 seconds
(8 to 10)% Life stolen per Hit
+(41 to 52)% Enhanced Defense
+(21 to 25) to Dexterity
Socketed (2)
Defense: (544 - 581) to (649 - 693)
Required Level: 38
Required Strength: 192
Item Level: 51
(111 to 130)% Bonus to Attack Rating
Adds 75-150 Poison Damage over 2 seconds
(14 to 16)% Life stolen per Hit
+(64 to 75)% Enhanced Defense
+(31 to 35) to Dexterity
Socketed (2)
Defense: (801 - 851) to (946 - 1006)
Required Level: 46
Required Strength: 384
Item Level: 77
(131 to 150)% Bonus to Attack Rating
Adds 100-250 Poison Damage over 2 seconds
(17 to 19)% Life stolen per Hit
+(75 to 86)% Enhanced Defense
+(36 to 40) to Dexterity
Socketed (2)
as suggested. Dont know if it was this that made the difference, but now i have more than 100ll and managed to kill diablo in destruction!!! I'll have in mind the trophies you suggested. At the moment i have only a few basic charms.
Thanks for the offer @Nitz, but i play SP and i would like to make my charms by myself also

, about the amulet, I have a ctc banish+3skills+lighting arena and im not in the mood to craft a new one (my wrist is still hurting from MOing my gear and playing with my barb....). Lighting arena+vampiric icon work wonders for now. Thanks again guys! if you have any other advice you are welcome!!