So I got lucky and now I can use some advice

I managed to pull both Tech Doom and Kate Bishop and thanks to last months quest I have more than enough gems to awaken both of them . My question is how many sign stones do they need ?
1
Comments
I have a sig 200 r4. He was only a prestige move when I got him in featureds many moons ago.
He is too niche for my liking.
Kate, sig 1, 100, 200
Sig 1 is what really makes a difference.
Once you start using her you'll realise her tapping on block to pause coldsnap comes way too handy.
I have kept her at sig 100, as I have to assign sigs on others champs too.
Sig 200 on kate, totally worth it.
Sig 200 on midDoom... Is fine but wouldn't be my first choice. He's fine at 20.
For iDoom, if you want prestige or to throw him on defense take him to as high a sig as you can. If you just want to use him to destroy bishops, he doesn't even need to be awakened, the blocking unblockables is nice and you get it at sig 1.