Split second is a mechanic thats rarely seen, but thats because you need to be very careful with it, as it means opponents cant respond to it with most actions
there are a few cards here and there (consider Teferi's Veil) to harness
Its also five damage with Haste, which might not seem like a big deal in 2025, but was a huge swing back when it released in Magic 2013
Finally, Passionate Archaeologist here is a very real win condition on its own, taking huge chunks of ~5 or more from our opponents as we continually cast spells off of Suspend, or impulse draw
It fuels these threats with a flurry of one-mana spells and efficient card draw, allowing Cori-Steel Cutter to flood the battlefield with an ever-growing tide of Monk tokens
He was born wise, but that meant he was wise enough to know that he didn't know everything