Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Wrath of God

Destroy all creatures. They can't be regenerated.

Counterspell

Gosta Dirk

First strike
Creatures with islandwalk can be blocked as though they didn't have islandwalk.

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice Mind Stone: Draw a card.

Tithe

Search your library for a Plains card. If target opponent controls more lands than you, you may search your library for an additional Plains card. Reveal those cards, put them into your hand, then shuffle.

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Merchant Scroll

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

Gift of Estates

If an opponent controls more lands than you, search your library for up to three Plains cards, reveal them, put them into your hand, then shuffle.

Pendrell Mists

All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay {1}."

Propaganda

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Reins of Power

Untap all creatures you control and all creatures target opponent controls. You and that opponent each gain control of all creatures the other controls until end of turn. Those creatures gain haste until end of turn.

Arcane Denial

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.
You draw a card at the beginning of the next turn's upkeep.

Alabaster Dragon

Flying
When Alabaster Dragon dies, shuffle it into its owner's library.

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.

Gemstone Mine

Gemstone Mine enters with three mining counters on it.
{T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.

Theft of Dreams

Draw a card for each tapped creature target opponent controls.

Island

Fellwar Stone

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

Festival

Cast this spell only during an opponent's upkeep.
Creatures can't attack this turn.