One common anti-evolution “argument” frequently used by creationists and other science deniers is what I like to call the “Probability Card.”
Typically it involves some wild-ass bullshit statistic they literally pulled out of their asses (otherwise known as the argumentum ex culo) to present a “gotcha” argument against skeptics. Of course while there are many problems with this, including several logical fallacies (such as the aforementioned argumentum ex culo, itself a variant of the equally fallacious argument from/by assertion), one way to get them to shut the hell up is by pointing out that improbable things happen, indeed this is even mathematically verified in a phenomenon known as “Littlewood’s law.”
On long enough time scales anything can happen, and there has been plenty enough time for truly wonderful things to come about by evolution, and there has been a large enough quantity of organisms over the past four billion years of life’s existence on this Earth to help evolution beat the odds of probability. People often forget that evolution happens on the scale of populations, not individuals, and population sizes often tend to range in the tens of thousands to hundreds of thousands, that’s plenty of organisms with enough mutations happening every time they reproduce to Climb Mount Improbability (obvious Dawkins reference is obvious) and become a reality.
You can also ask them how probable it was that they would be born in the first place, since it obviously happened but the exact circumstances leading up to their birth in the exact same order happening in the first place is very improbable. Don’t expect them to answer this though, they never do.