If the target nonland permanent is an illegal target as Compelling Deterrence tries to resolve, it won't resolve and none of its effects will happen
A first-edition Neo Genesis Lugia graded at PSA 10 reportedly sold in October 2020 for $50,000, with a BGS 10 Pristine copy selling in May 2021 for over $144,000
Combine Moraugs ability with Felhide Spiritbinder, snag haste and a power boost via Kragma Warcaller, generate a ton of mana with Neheb, the Eternal you should have no problem shifting or solidifying the balance of power at the table if this spell resolves
These cards give you access to some of the most complex and rewarding decision-making trees available, and they represent some of the finest examples of what makes the best blue cards MTG has ever offered so compelling
My thoughts here aren't just guided by trepidations regarding Marvel, but also how well this other crossover worked