Merfolk Branchwalker

Explore is the design idea that solved a recurring problem with cheap green beaters: the dead draw. A 2/1 for two mana ages out fast, so the trigger softens what it lacks by resolving a small piece of card advantage the moment the creature lands. Reveal the top card of your library: if it is a land, you take it and keep a creature that has already found you a drop; if it is anything else, this becomes a 3/2 and you decide whether to leave that spell where it sits or send it to the graveyard. That binary is the whole engine, and neither outcome is a blank. The graveyard line is where the mechanic earns its keep, because binning a nonland rather than leaving it on top is a genuine sculpting decision: clear a card you would rather not draw next, or protect a spell you do want by keeping it in place. Nothing about the reveal happens before you commit; the card is only seen during the trigger's resolution, so the reward is reading your own land count and your own top-of-library tension, not peeking ahead. As a baseline for explore creatures, this is the cleanest statement of the keyword's pitch: a green two-drop whose worst case is still a body that grew.