For invades, yes. I'm sure you're using him when there are a good number of skull generators. Put him with any one of Skeleton, KOS, BoneDragon or Sheggra, and he could be devastating. However, when put in the middle of Maw, Coronet and Mercy, I don't see the point. @Bolatsi's match was a perfect example of how the AI will squander the potential of that troop. The only time that troop might work is immediately after Maw's one cast, which probably needs a lucky 4-match to be generated after he devours. So, given that line-up on a defence team, why Skeleros? (and this is coming from someone who puts up an intentionally bad defence team to bless my neighbours, but that clearly wasn't the intent of that player).