Goblin Raider

Goblin Spelunkers

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Goblin War Buggy

Haste
Echo {1}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Guma

Headlong Rush

Attacking creatures gain first strike until end of turn.

Heat Ray

Heat Ray deals X damage to target creature.

Absolute Law

Monk Idealist

When this creature enters, return target enchantment card from your graveyard to your hand.

Jagged Lightning

Jagged Lightning deals 3 damage to each of two target creatures.

Lay Waste

Destroy target land.
Cycling {2} ({2}, Discard this card: Draw a card.)

Lightning Dragon

Flying
Echo {2}{R}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
{R}: This creature gets +1/+0 until end of turn.

Meltdown

Destroy each artifact with mana value X or less.

This creature can't attack unless a creature with greater power also attacks.
This creature can't block unless a creature with greater power also blocks.

Outmaneuver

X target blocked creatures assign their combat damage this turn as though they weren't blocked.

Rain of Salt

Raze

As an additional cost to cast this spell, sacrifice a land.
Destroy target land.

Urza's Saga