This makes Wolverine the fourth hero to have "Get Out of Death Free" card. Cap was the only hero for years, then we got Drax, and suddenly within a single phase, we have both Pheonix and Wolverine being able to resurrect.
On the one hand, it's pretty thematic, as X-men generally get brought back from the dead more regularly than old Marvel Staples. Though I'm not sure where we stand with Spider-Man at this point, what with all the cloning.
In any event, this is a pretty solid resurrection card. You get 5 hit points, Wolverine is readied and you only have to discard I Got Better. Discarding means this miracle is repeatable, and readying Wolverine means he can flip to alter-ego and heal for another 6 points.
This is a remarkable card, and I think that it costing 4 resources is exactly correct.