If a creature's power is 2 or less when it enters but becomes greater than 2 while Vicious Clown's ability is still on the stack, Vicious Clown will still get +2/+0 until end of turn when its ability resolves
Well, yes, but it seems kind of weak for a mythic rare
What makes it weaker than other epic spells is how specific your deck has to be built in order to actually ensure you can close games out once you cast Undying Flames
Unsurprisingly, thanks to the obscene demand for this crossover, many of the sets MTG cards are insanely expensive
The key value drivers: Why edition, condition (grading), language, and foil/non-foil can have a massive impact on priceand why demand ultimately trumps everything else
Flare of Fortitude Chief: This card does an amazing job protecting your permanents and your life total, which seems totally reasonable at four mana and absolutely cracked at the low cost of sacrificing a nontoken white creature