mtg cards with discover MTGNexus Discover the Impossible | Kamigawa:

(6/6/2025) 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

You choose a nonland card from it and exile that card

How Best To Play The Deck A Mendicant Core, Guidelight Commander deck is all about flooding the battlefield with artifacts as quickly as possible after reaching max speed

But hitting their Negate or, like, Provoke wont do anything for you right then

Black I think the highlights in black come as cards that look and feel as if they were always in the old border, even though we know that to be untrue