Eladamri, Korvecdal

You must pay all costs and follow all timing rules for spells cast from the top of your library this way.

Because you never "cast" a land card, Eladamri, Korvecdal doesn't allow you to play a land creature (such as Dryad Arbor) from the top of your library.

If the top card of your library changes while you're casting a spell, playing a land, or activating an ability, you can't look at the new top card until you finish doing so. This means that if you cast a spell from the top of your library, you can't look at the next one until you're done paying for that spell.