Faceless Agent

Seek was built for a digital-only environment where genuinely random selection could be implemented cleanly, and this Shapeshifter is one of its most legible payoffs: a tutor that trades your ability to choose for a guarantee that it finds something on-type. The entry trigger reads your library's composition, counts which creature type appears most often, and pulls a random creature of that type into your hand. Changeling matters for the Agent's own identity (it can be your fourth Sliver or fifth Goblin for effects that check types), but it does not touch the math the trigger cares about: the seek looks at what remains in your library, not at the Agent standing in front of it, which is already out of the library when the trigger resolves. Keeping those two things separate explains why the effect can whiff badly in the wrong shell and hit reliably in the right one. A tutor that cannot pick loses most of its value the moment your library is a toolbox of singletons, and regains it the moment your library is thick with copies of one tribe. That is Seek's honest limit, and this card lives entirely inside it: it wants twenty-plus creatures sharing a type, where "a random one of those" collapses into "another one of those," and it does nothing you would want in a deck of unique answers.