Dread Claws rotation

Can someone explain me the rotation of dread claws build ? Because some writes about mostly spamming rampage , other plays with Metamorphosis,im a little confused

They talk about Rampage because of this

Engulfing Terror consume one stack of Shadow form to conjure claws around your most recent greater demon summon

Basically letting your claws hit twice

And metamorphosis Terror demon lets you go into Shadow form

Maxroll build

Read the skill rotation part

so basically you cast your demon around you while you cast dread claws and you are in metamorphosis ?