I tend to agree with six nations, whilst Aylen has unassisted 7 power limiting her use at least she has a nice life gap behind her.
A card like Minerva or hemdall or even Tomas just don't add to the skeelz at all bringing a damage that is less than most clans nukes with abilities that aren't exactly backbreaking
Michael simply suffers from a useless situation: courage making him a predictable nightmare to play with. And if you're going to use his 7 unsupported power on the non courageous round you may as we'll have had Aylen there anyway
Michael is actually quite good for surprising the opp on Reprisal turns, if he's your only high gap card they're unlikely to expect you to play him until a Courage turn, a fact you can use to your advantage. With Aylen you get no such advantage.
The main problem is they don't have high damage power or attack manipulators and their go to cards happen to be CRs; one of whom is banned. Also they only got 1 2s dr. It speaks a lot when lots of Skeelz decks end up splashing in cards like Pegh or Spiaghi. Also cause they are splashed in, they get no bonuses and end up useless in the face of SOA.