Bismuth forge combinations?

[Jitsu]

Kinda surprised i can't find this anywhere online... but what are they? the game does a really bad job at explaining her forge ability (and with bad i mean, it dosn't, AT ALL), so its all trial and error. Please correct me if im wrong, because this is mostly what i gathered by observation. Also i didn't try any combinations with the dust, as i asume its just junk that makes you weaker buffs.

red+red = attack buff
blue+blue = defense buff
red+blue = star cost reduction buff
red+white = luck buff
blue+white = iron wall
white+white = burning axe attack

[Hamtigers]

when you're on the forge menu you can highlight the list icon to the left of the ingredients to give a full list of combinations which will save once you try them. But it only "explains" it via an icon, though it does at least make a nice visual reminder. You'll need to do the dust combinations for a sidequest that asks you to fill out the list, but otherwise it's just filler material for weaker atk/def buffs as you said.

[Bluehand]

I need help =L

[Father]

White and dust makes your attacks cause fire not a small axe attack