Ballistic missiles are expensive, so you would want to put your “best” warhead on the pointy end. And in Iran’s case, that makes me think nuke. (They’ve had plenty of time to build a few, especially with North Korean help.)
Getting a missile past the Iron Dome system is another story, of course.
But if Iran was glaringly stupid enough to nuke Israel, retribution would be swift and horrible. After the pager episode, just imagine what Israel could do with their own (unconfirmed) nukes. Regime change indeed.
There wouldn’t be much left of Iran if they stupidly nuke Israel. The carnage and total destruction will be shocking. I think Putin, Xi, and the Rocket Man will stand down at that point. When Israel says “never again” they mean it. They will not countenance the loss of their nation.
God protect and save Israel!