Just over the last few months, its taken a significant jump on the secondary market with the higher end of that range looking pretty consistent over July and early August
It won't change later, even if the greatest power among creatures you control changes
According to TCGPlayer, based on 5,000 packs, MHRs from the Mega Evolutions Pokmon set have a 1 in 1,260 chance of being pulled
But as our new dog-friend can attest, some cards Escape with some extra oomph
For a one cost Character (the number in the top left is how much Ink it costs to play her) shes a solid enough choice
Turning dead cards into action sounds like the perfect use case, though I've seen this be used in a deck that tries to go off with Phyrexian Dreadnought and Greater Good, with some Replenish action, too, hence the two-dollars-and-change price tag