OMG!!!....very confused

STARKtech

Pls mates help me awakening an 5 *mutant below
If u have any best one....suggest me

Cliffordcan

Not Wags.

Can’t go wrong with the other 2. I’d probably do Mags 1st

Unknown

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Unknown

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The_Sentry06

Magneto(red)

Makes Mags extremely tanky. However none of these options require them and rest all mutant who need awakening ideally need high sig too.

Shaqatac

Save it for others- who is great with even less signature ability

Save for a colossus/aa/wolverine

te_dua_shum

Save it for others- who is great with even less signature ability

Red Mags doesn't really need the sig. offensively, and if you want that protection you need to put a lot of sigs stones in him; Prof. X might need it for AW defense, but offensively it's just a nice bonus, he works great unduped; White Mags is probably the one that needs his sig. the most between the three (faster ramp up and higher damage potential), but I wouldn't use a gem on him, and I own a duped 6* version of him at R2.

In conclusion, I wouldn't use the gem on any of these champions ^_^

Reference

Save it for others- who is great with even less signature ability

See if that chart gives you any idea.