It isn't an optimal card in these formats as of right now, but that doesn't mean that it won't become more popular if we see cheaper dragons down the road
This is a 2/3 and pumps your artifact creatures twice, so he is a Tempered Steel in the Command Zone for one more mana
Virtually every deck needs to play lands to get going, but if you drop an early Cemetery Gatekeeper and exile a land (which there should be abundance of in eternal formats), then is your opponent forced into not playing lands until they find an answer
When every card you play bounces their creatures and spells back to their hand, the game is as good as won
Black is great at using the graveyard, so this is practically drawing three cards by sacrificing three artifacts
If you manage to increase Wolverines power to 5, two doubling effects bring his damage to 20