Black bolt and Doctor strange

Just curious as to why there is no 5 star black bolt or Doctor strange in the 5 star crystal

Comments

They just aren’t becoming 5*. Along with may others like Scarlet Witch, Thor, etc

I know why Thor, SW and wolverine are not 5 stars but i dont see a reason for no Black bolt or Doctor strange.

For the same reason that Thor SW and Wolverine aren't becoming available as 5-stars ... simply because they weren't selected in the past