Gaea, the Tree of Life

Constellation - Whenever Gaea, the Tree of Life
or another enchantment enters the battlefield
under your control, each player reveals the top
card of their library, put all creature cards
reveled this way into their owner's hand.
Landfall - Whenever a land enters the battlefield
under your control, each player reveals the top
card of their library, put all land cards revealed
this way into their owner's hand.