shuffling mtg cards 100 PCS TCG/MTG Card Sleeves, Matte Back Anti-Slip & Easy Applicable to OCG CCG DTCG PTCG, 2.6 x 3.6 in Standard Size (Demonic Holy Maiden) : Toys & Games MTG - How to Shuffle

At the time the Invasion and Odyssey block Prerelease promos were printed, all six of the promosRaging Kavu, Questing Phelddagrif, Fungal Shambler, Stone-Tongue Basilisk, Laquatuss Champion, and Glorywere the only Magic cards in their respective languages

Answer: because the design team told us so, loudly and repeatedly

And if you target one of your permanents, you can cast it at any time

Teferi, Time Raveler One of the best planeswalkers and overall best Azorius cards you can play, Teferi, Time Raveler provides the best stack protection in the game

Oblation can shuffle away any permanent, though it does let the controller draw two cards