Vadrok

[The Fluff]

Hi, if I have Vadrok, Apex of Thunder mutated below a Ripjaw Raptor. Can an opponent use Abrupt Decay to target Vadrok and kill both creatures?

[Argus]

Hi, if I have Vadrok, Apex of Thunder mutated below a Ripjaw Raptor. Can an opponent use Abrupt Decay to target Vadrok and kill both creatures?

You have only one creature there. Its name is Ripjaw Raptor, its mana cost is 2GG, and its converted mana cost is 4. It is not a valid target for Abrupt Decay.

702.140c As a mutating creature spell resolves, if its target is legal, it doesn't enter the battlefield. Rather, it merges with the target creature and becomes one object represented by more than one card or token (see rule 721, "Merging with Permanents"). The spell's controller chooses whether the spell is put on top of the creature or on the bottom. The resulting permanent is a mutated permanent.
702.140e A mutated permanent has all abilities of each card and token that represents it. Its other characteristics are derived from the topmost card or token.

721.2. To merge an object with a permanent, place that object on top of or under that permanent. That permanent becomes a merged permanent represented by the card or copy that represented that object in addition to any other components that were representing it.
721.2a A merged permanent has only the characteristics of its topmost component, unless otherwise specified by the effect that caused them to merge. This is a copiable effect whose timestamp is the time the objects merged. (See rule 613.2.)

[The Fluff]

thanks for the answer.