Enlightened Tutor

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

Spellshock

Whenever a player casts a spell, Spellshock deals 2 damage to that player.

Repercussion

Whenever a creature is dealt damage, Repercussion deals that much damage to that creature's controller.

Mountain

Story Circle

As Story Circle enters, choose a color.
{W}: The next time a source of your choice of the chosen color would deal damage to you this turn, prevent that damage.

Seismic Assault

Discard a land card: Seismic Assault deals 2 damage to any target.

Land Tax

At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.

Winds of Change

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

Magma Vein

{R}, Sacrifice a land: Magma Vein deals 1 damage to each creature without flying.

Ensnaring Bridge

Creatures with power greater than the number of cards in your hand can't attack.

Plains

Balance

Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players discard cards and sacrifice creatures the same way.

Planar Birth

Return all basic land cards from all graveyards to the battlefield tapped under their owners' control.