i think it is better for elrond to start with his clothes and later at lvl 5 get the black armor then lvl 10 get the last alliance and if you buff him with a forged armor he gets the golden armor
Yes, that's my proposal, but on level 10 should be his Dol Guldur armour. I think that three outfits are quite sufficient and suitable for him. Either way it will be unique. You are talking about four variations and it's quite a lot.
with some new ult but not the tornado galadriel should have the tornado
Honestly, yes, Gladys has tornado (her dark/ring hero form) but Elrond has whirlwind, it isn't strong tornado, but either way, I feel that it isn't suitable and lore accurate (in comparison to Nenya or Narya which have brilliant implementations in the mod) and mainly - I think that his role is (or will be) very useful hero supporter, but destructive whirlwind doesn't correspond with his role.
and have his Last Alliance armor when he is summoned in the Last Alliance Spell.
And in which faction he is summoned in the Last Alliance Spell? So where will be chance to see him in this armour?
Elves with Elrond were removed from Arnor ultimate spell and there is completely different effect (Gondor summoning). Try to play for Arnor.
And in Imladris? Yes, there is Last Alliance Spell, but logically without Elrond because he is as a permanent and main hero there ... and clones had only in Matrix trilogy.
But I have an idea ...
Elrond's role as a helper to others is fulfilled with his "Refresh" ability, which allows an allied hero to instantly use their abilities again. I would argue that Refresh is Elrond's other iconic ability.
I completely agree with you, in vanilla game such spell was available on level 10 ... maybe this could be effect of the Elven ring, mass heal and recovering of abilities for heroes, because it's mighty ability and Elrond isn't powerful sorcerer, so in that case his healing skills are supported by the Elven ring. So on level seven will be space for some new and "normal" ability.
For level 7 (or for lower level - it isn't important) I suggest simply solution - "mount/dismount" - we know that he is able ride a horse quite a long time, since days of Arnor ...
and in the first Hobbit movie we can see him as a leader of Imladris cavalry:
... also it fits into the faction, Imladris will have melee cavalry and only Glorfindel and Arwen are able to ride.
So effects for three Elven rings of power will be following:Narya - supports
Nenya - protects
Vilya - heals
It makes sense.