Blossoming Defense is much better for Constructed, as hexproof is so versatile and useful, while were not always going to get as much value from untapping a creature
Bird Typal in Standard While there are lots of Chocobo cards coming in Final Fantasy, theres already a surprising amount of Birds legal in Standard
It also plays nicely with X creatures that arrive with X counters like the Hydra tribe
second, the ability says nothing about who controls the spells, so the bonus will affect all players

Adrix and Nev, Twincasters Aesi, Tyrant of Gyre Strait Body of Research Esix, Fractal Bloom Ezuri, Claw of Progress Galadriel, Elven-Queen Gandalf, Westward Voyager Hakbal of the Surging Soul Hydroid Krasis Jyoti, Moag Ancient Kaseto, Orochi Archmage Kasmina, Enigma Sage Kianne, Corrupted Memory Kinnan, Bonder Prodigy Kinnan, Bonder Prodigy Kiora, Master of the Depths Kiora, Sovereign of the Deep Kiora, the Crashing Wave Koma, Cosmos Serpent Koma, Cosmos Serpent Kruphix, God of Horizons Kumena, Tyrant of Orazca Kydele, Chosen of Kruphix Master Biomancer Momir Vig, Simic Visionary Mystic Snake Nissa, Steward of Elements Oko, Thief of Crowns Oko, the Ringleader Oko, the Trickster Omo, Queen of Vesuva Prime Speaker Vannifar Prime Speaker Zegana Primo, the Unbounded Progenitor Mimic Quandrix, the Proof Rashmi, Eternities Crafter Risen Reef Roalesk, Apex Hybrid Sab-Sunen, Luxa Embodied Slippery Bogle Tamiyo, Compleated Sage Tamiyo, Seasoned Scholar Tanazir Quandrix The Fourth Doctor The Thirteenth Doctor Thrasios, Triton Hero Thrasios, Triton Hero Tishana, Voice of Thunder Uro, Titan of Nature's Wrath Vannifar, Evolved Enigma Wistfulness Xolatoyac, the Smiling Flood Zimone, Infinite Analyst Zimone, Mystery Unraveler Zimone, Paradox Sculptor

Orzhov decks, thematically to the wealthy nature, are often of the Aristocrat variety