Glyph Keeper

Oracle Text
Flying
Whenever Glyph Keeper becomes the target of a spell or ability for the first time each turn, counter that spell or ability.
Embalm
( , Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Sphinx with no mana cost. Embalm only as a sorcery.)Card Rulings
4/18/2017 For each card with embalm, a corresponding game play supplement token can be found in some Amonkhet booster packs. These supplements are not required to play with cards with embalm; you can use the same items to represent an embalmed token as you would any other token.
4/18/2017 The token copies exactly what was printed on the original card and nothing else. It doesn’t copy any information about the object the card was before it was put into your graveyard.
4/18/2017 The token is a Zombie in addition to its other types and is white instead of its other colors. It has no mana cost, and thus its converted mana cost is 0. These are copiable values of the token that other effects may copy.
7/14/2017 If a spell or ability puts a creature card with embalm into your graveyard during your main phase, you’ll have priority immediately after that spell or ability resolves. You can activate the creature card’s embalm ability before any player can exile it with an effect, such as that of Crook of Condemnation, if it’s legal for you to do so.
7/14/2017 Once you’ve activated an embalm ability, the card is immediately exiled. Opponents can’t try to stop the ability by exiling the card with an effect such as that of Crook of Condemnatnion.
But overall, a good control finisher that is really, really hard to keep off the field. It can close out games on its own if the enemy doesn't have two boardwipes ready to go, or four total spells thrown in the bin to deal with this one card. My only grievance is that it will counter your spells as well, meaning if your opponent isn't bothering with trying to destroy it with spells, you can't pump it to save it in a trade with an enemy flyer.
Yea that's actually completely viable in Standard, good job WOTC