This allows for lots of strategic combinations by not requiring Alakazam to be Active to be played
Want to be a Spike
While this is unlikely to be of any use to an aggressive deck or one that makes use of graveyard strategies, any deck that likes to take its time is probably going to want this around
Amalia Benavides Aguirre Arvad the Cursed Astarion, the Decadent Baron Bertram Graywater Bartolom del Presidio Blood Baron of Vizkopa Blood-Cursed Knight Carmen, Cruel Skymarcher Clavileo, First of the Blessed Cleric of Life's Bond Cliffhaven Vampire Cruel Celebrant Drana and Linvala Drana's Emissary Edgar, Charmed Groom Elenda, Saint of Dusk Elenda, the Dusk Rose Felisa, Fang of Silverquill Indulging Patrician Legion Lieutenant Markov Purifier Order of Sacred Dusk Pitiless Pontiff Regal Bloodlord Ruthless Lawbringer Sanguine Savior Silverquill Pledgemage Tithe Drinker Verrak, Warped Sengir Vish Kal, Blood Arbiter Vito, Fanatic of Aclazotz Vizkopa Vampire Vona, Butcher of Magan Wispdrinker Vampire
Threshold Enchanted creature has shroud as long as there are seven or more cards in your graveyard