Then use whatever lv 5-7 synchros that can be used, like lightning warrior.
If not, then just use 3 aromaseraphies, and if you have it, ancient fairy dragon.
Junk Synchron's only drawback is that you pretty much are locked into using Akiza with the Dark Verger skill, as that's the only way to make Junk Synchron useful in Aromage deck.
I don’t use armades, but if you are wanting to get a black rose easily use akiza’s mark of the dragon foot skill and it’ll add a copy plant and black rose dragon to your deck