Hey guys im new here.

i just got a few questions about the above named heroes.

are all of these 3 heroes playable at wars?
another very important question is ..what should i build with thesee heroes?

and...what should i skill with them..because if i think about troll...hmm should i skill berserk rage and blind..or blind and aura?
the same with alchemist.....stun and gold? stun and cloud? cloud and gold? :/

i hope u guys can help me in any way..

yours phill

For omni u can obviously play him in clanwar probably of the best in new versions.

U can also play troll & Alche different but probably both are the best carry in late.

Alche in lane is really strong with his stun ( without cd ) :/ u play stun+cloud and build what u want u can carry with all items with alchi, s&y / radi / bf etc...

Troll is the BEST late gamer the 2s stun in late = gg but he is far less effective than an alchemist in lane so u'll have to play him with support like dazzle for example
U have to use his first skill in the beginning because it's easier to last hit , more damage + more hp
if u are in lane aura + berserker rage
if u are mid u can play with blind cause ur enemy will miss his lasthit + deny
items for troll are bkb / butter / lothar / dominator .
if u are with an omni u can skip bkb if the other team doesn't make purge but they will probably do it.

I can easy say Omni is a must to ban or pick. His repell spell is really powerfull and the ulti is also a great spell both disable enemy damage. About builds on omni I'd say it depends but kinda get like 1-2 nulls / bracers, boots and probably arcane ring. Then it all depends on the game but one build could be meka + refreshers orb. Another could be Guinsoo or euls. You could add all of them in the same build but i doubt you get that much farm. Some people go radiance but omni is to week for radiance imo. There's a lot of items that suit him better and he is more support then a tank or carry.

About skilling: Go heal and repell at start. Not the aura

I would say it depends if you play solo lane or dual lane with omni dual you can skill heal and aura solo repel & heal

no if u play cw with omni its defenitely heal + repel, u can if u want alternate heal +[ repel/stats ]if lane against u are good nukers but not aura

As i always say man .. everything depend on MANY things .. when i take a hero i dont instant put the same skill every time , i choose the right one when i go to my lane and check the enemy line up.
Altho ye its good to skill blind also with troll at the begining to make farming of other rly hard especially if u solo mid vs some1 "farmer" also.With alchemist depends the item build u gonna follow also.. if u going for "fast" radi u can play stun-gold ulti.Omni is a "War" hero also , and its the definition of the "support" in dota, have all skills skilled fast (slow aura,repel(if needed[most times needed])heal) and u can go for rkn,meka, fast travel (as always) etc l8r :>

if i playing with alcha i usually concentrate with his fkin imba ulti.So after mordiggian and pt (these are basic for him i think) i going after manta.Why?. couz your clones were get the same regen + 1000 +500 hp and damage of mordiggian and the as.In the begining buy rob and spam(nearly) enemy with your stun.Lvl2 learn gold. Cloud is not a good choice because its 160 mana at any level but later its very good skill especially for farming.With alke you sould extremly care with last hits cuz your gold skil. You can get imba items very early.SO Pt, armlet, manta, vladi, couriass, and hot. With omni make a support build. Heal and 1-2 point to repel first and slow aura is usefull as well.Get arcane asap than bot and guinso.NEVER buy any damage.With troll always go solo.Max blind than its changable.70% of the games i learn blind, ult, 4 atr bonus, than fervor and bash(or what). Dont learn fervor early couz yor kreeps will hit faster as well and you will find yourself near to the opp tower. Get bkb pt and s&y or/and butter.