A combination of obscene rarity, stellar artwork, usefulness on the tabletop, and a connection to one of MTGs most famous cards have coalesced to drive its price way up
After all, youve first got to get through the first two Radical Ideas, and then two more, before youre even ahead. You can discard a Radical Idea to Jump-start another, but youre still talking about sacrificing some of the selection youre supposed to be getting
If theres ever been a set that makes me miss the old block structure, its this one
If you compare this to Night's Whisper, youre paying an extra mana to create a Wizard token, with the potential to trigger cards that care about casting spells from exile or enable two magecraft triggers
Being able to select two of the four modes listed makes it a versatile removal spell to destroy what you need to based on the current in-game situation