support morph memebuild

waveform at 2/6/8/9
adaptive at 3/4/5/7
morph at 1/12/13/14
replicate at 10/11/16

only CORE item is soul ring
from there your normal complement is tranquil boots, but arcanes are possible too
medallion is an optional midrange item next, its extremely good on you, but sometimes rushing blink is better
blink is your only core big item, it should be purchased before any luxuries

luxuries can be literally anything your team needs
>sheepstick
>euls
>atos
>necrobook
>blademail
>force staff
>shivas
>dagon + eblade

I'd advise against mek/pipe unless you went arcanes instead of tranquils, the main problem isn't mana so much as the fact the mek/pipe tankiness on yourself is completely wasted, you don't need additional tank on morphling

a dagon eblade build is particularly awesome if you're snowballing since it transitions you from support to lategame nuking carry if you need to pick up slack on your team. You can contribute all midgame with the damage of dagon 1/2/3/4/5 which is awesome on your ganking stun, but then lategame morph full agility, and bam you've got a blink eblade dagon 5 adaptive and replicate out and you can solo pick off any hero

also I should point out, morphling has great synergy with so many item choices in ways other supports just can't capitalize on them

>build force staff and if you catch someone facing the wrong way, you push them 900 range into your team like a batrider
>build necrobook and you can stun someone for 4 seconds as your summons whack them
>build dagon/eblade and you can morph full agility and be a nuker as needed
>build blademail and you can soak up aoe damage with your ludicrously high HP without dying while reflecting fatal amounts, also giving armor on a low armor hero

someone like crystal maiden can't do that
and yet, with no items at all but a soul ring and brown boots, you're shitting out more contribution than any other support