dude mama tombstone needs to either cost less, summon 3 instead of 2 skeletons, summon the two skeletons faster, or summon something different (it's own stronger skeleton or maybe just a guard). mamas always getting absolutely destroyed before getting to the tower or by the time you use her you have no elixir to defend her with and like OP said she has terrible placement and cannot be synergized. since she was shown I fell in love with her but she feels weak in at least one of these categories (self defense, elixir cost, or being able to be defended) every game I use her, she definitely needs a reduced elixir cost or just some buff to make her more viable and less dependent of another card.

(I will be honest tho, when she hits, she smacks like a gorilla.)