Nature's Lore

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

Jungle Shrine

Jungle Shrine enters tapped.
{T}: Add {R}, {G}, or {W}.

Whenever a creature attacks one of your opponents or a planeswalker an opponent controls, that creature gets +2/+0 until end of turn.

{T}: Add one mana of any color that a land an opponent controls could produce.

{T}: Add one mana of any color in your commander's color identity.

Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.