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.

Wall of Fire

Defender (This creature can't attack.)
{R}: Wall of Fire gets +1/+0 until end of turn.

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.

Have

Swords to Plowshares

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

Conversion

At the beginning of your upkeep, sacrifice Conversion unless you pay {W}{W}.
All Mountains are Plains.

Sunglasses of Urza

You may spend white mana as though it were red mana.

Animate Wall

Enchant Wall
Enchanted Wall can attack as though it didn't have defender.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Death Ward

Disenchant

Plains

Mountain

Dwarven Warriors

{T}: Target creature with power 2 or less can't be blocked this turn.