Shock

Magmatic Chasm

Creatures without flying can't block this turn.

Brazen Wolves

Whenever this creature attacks, it gets +2/+0 until end of turn.

Mountain

Swab Goblin

Ball Lightning

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Haste (This creature can attack and {T} as soon as it comes under your control.)
At the beginning of the end step, sacrifice this creature.

Ember-Eye Wolf

Haste
{1}{R}: This creature gets +2/+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.