Each time I put it in the design, development removed them because protection from artifact didn't seem too relevant
Board Clears that Destroy Multiple Permanent Types (Bane of Progress, Fade From History, Rampage of the Clans, Wave of Vitriol) Again, I really expected to have more of these to talk about, but even against card types it routinely obliterates with spot removal, green just doesnt get that many mass removal spells compared to the other colors in Magic
Haze of Rage could boost our little Wizards into serious threats
So they can be reduced by Ugin, the Ineffable, countered by cards like Counterspell and Essence Scatter, and also trigger abilities like Animar, Soul of Elements and Beast Whisperer
That tension balances somewhere between Scion being a powerful tutor general and Ur-Dragon allowing players to have fun with less repetitive game play
In addition to potentially allowing you to cast an opponent's strongest spells for free, Tasha's static ability creates 3/3 Demon tokens whenever you cast a spell you don't own, converting these stolen spells into additional manpower