Oke here it comes my first attempt #crushing-my-mind 🤞
I think the magic word is frontal in every image you see the frontal bone (the skull of the death symbol) frontal contains 7 letters almost synonymous to bone so might be the magic card be bone golem?
Thanks for participating in the challenge again.
However,
frontalis not the secret word. And the card isn'tBone Golemeither. Though, it is indeed from the Death Splinter.These aren't the answers too. But you sort of got my intended meaning of "synonymous". When you find the mystery word, there's only one card that'll come to mind.