Those who understand the forest are free to harvest its bounty.

Rowen

Reveal the first card you draw each turn. Whenever you reveal a basic land card this way, draw a card.

Seventh Edition

"I've dreamt of a second harvest but fear I will not see it."
—Asmira, holy avenger

Classic Sixth Edition

"I've dreamt of a second harvest but fear I will not see it."
—Asmira, Holy Avenger

Visions

During your draw phase, reveal the first card you draw to all players. If that card is a basic land, draw a card.

The first sentence is a continuous ability. You reveal the card when you draw it, during the resolution of any draw effect. The second sentence is a triggered ability, and thus will wait until the entire draw effect finishes resolving before you do it.