Karstag, Wildwaker

Prowess, Menace, Trample
Whenever a creature enters the battlefield under your control, scry 2, draw a card, and gain 1 life.
{t}{x}: Search your library for a creature with converted mana cost X and put it into play tapped under your control.
Exiled at birth, he found solace in the wild with the Great Mother, and has since then been her prophet, spreading unity through nature.