Nature's Lore

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

Detonate

Destroy target artifact with mana value X. It can't be regenerated. Detonate deals X damage to that artifact's controller.

Wild Growth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.

Mana Flare

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Ghazbán Ogre

At the beginning of your upkeep, if a player has more life than each other player, the player with the most life gains control of Ghazbán Ogre.

Birds of Paradise

Fellwar Stone

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

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Ley Druid

Llanowar Elves

Winds of Change

Each player shuffles the cards from their hand into their library, then draws that many cards.

Disintegrate

Disintegrate deals X damage to any target. If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead.

Untamed Wilds

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

Karplusan Forest

{T}: Add {C}.
{T}: Add {R} or {G}. Karplusan Forest deals 1 damage to you.

Shivan Dragon

Flying
{R}: This creature gets +1/+0 until end of turn.

Grizzly Bears

City of Brass

Whenever City of Brass becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Ironclaw Orcs

Ironclaw Orcs can't block creatures with power 2 or greater.

Elven Riders

Elven Riders can't be blocked except by Walls and/or creatures with flying.

Aladdin's Ring

{8}, {T}: Aladdin's Ring deals 4 damage to any target.

Dwarven Ruins

Dwarven Ruins enters tapped.
{T}: Add {R}.
{T}, Sacrifice Dwarven Ruins: Add {R}{R}.

Fyndhorn Elder

Giant Growth

Target creature gets +3/+3 until end of turn.

Mountain

Sylvan Library

At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.

Killer Bees

Flying
{G}: Killer Bees gets +1/+1 until end of turn.

Force of Nature

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
At the beginning of your upkeep, Force of Nature deals 8 damage to you unless you pay {G}{G}{G}{G}.

Incinerate

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.