Regular Packs Mythic packs cost more for the higher chance of opening a mythic rare than regular packs
With it, you can drop a creature and protect it from targeted removal
I cant see how Mass Manipulation is anything but a Commander card

Commander (1) Planeswalker (1) Creatures (10) Braids, Cabal Minion Consecrated Sphinx Drannith Magistrate Grand Arbiter Augustin IV Notion Thief Opposition Agent Orcish Bowmasters Seedborn Muse Tergrid, God of Fright Thassa's Oracle Instants (12) Ad Nauseam Crop Rotation Cyclonic Rift Enlightened Tutor Fierce Guardianship Force of Will Gifts Ungiven Intuition Mystical Tutor Teferi's Protection Vampiric Tutor Worldly Tutor Sorceries (8) Biorhythm Coalition Victory Demonic Tutor Farewell Gamble Imperial Seal Jeska's Will Natural Order Artifacts (8) Bolas's Citadel Chrome Mox Grim Monolith Lion's Eye Diamond Mana Vault Mox Diamond Panoptic Mirror The One Ring Enchantments (7) Aura Shards Humility Necropotence Rhystic Study Smothering Tithe Survival of the Fittest Underworld Breach Land (53) Ancient Tomb Field of the Dead Gaea's Cradle Glacial Chasm Mishra's Workshop Serra's Sanctum The Tabernacle at Pendrell Vale Forest x8 Island x12 Mountain x7 Plains x7 Swamp x12 Select the cart button for a handy way to see the prices of each one at TCGplayer

For instance, Class enchantments are making a return from the Dungeons & Dragons sets, this time representing the various hobbies and vocations the animals of the plane enjoy
My logic behind this choice is that in the event Gisela gets removed, you can always cast Bruna from the command zone in order to recur herwith the obvious exception of exileso I think that the likelihood of melding them into Brisela is higher with Bruna in the command zone