Like Hero said, a couple times, back on topic.
So, with that. 101 is a good card splashable in any Rank 4 making Deck and added to that a counter to BLS Envoy, Dracossack, and especially Beelze. Putting Beelze in Def only functions as a wall, when you know there's a 101 coming next, IF you were to put it in Atk after all. It's a great card, and with the C101 in the backhand, for say Gadgets or Battlin' Boxers, you really have something to have people fear.
Downsides, it has to detach 2 materials to absorb the target monster. It makes it very vulnerable to summoning hazards, such as Torrential and Bottomless. Sure, it'll live the hit, but it won't have any use, other then living one more time afterwards. Also makes, for him, Xyz Reborn useless. He's not a target you want, unless you have a Rank Up on hand. And obviously the mediocre Atk. 2100 is better then MAestroke, but Maestroke had a 1 detach effect, making him a bit more useful in long term.
As I see it, S H ARK is best a short term solution, to take away current threats, such as a JD, BLS, Beelze or such things. But it won't do you any good on the long term. Despite that, it's a great card, and may very well be used in about any Deck that can make Rank 4.