Iron Star

Whenever a player casts a red spell, you may pay {1}. If you do, you gain 1 life.

Dwarven Warriors

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

Meekstone

Creatures with power 3 or greater don't untap during their controllers' untap steps.

Hurr Jackal

{T}: Target creature can't be regenerated this turn.

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.

Dragon Whelp

Flying
{R}: This creature gets +1/+0 until end of turn. If this ability has been activated four or more times this turn, sacrifice this creature at the beginning of the next end step.

Mountain

Firebreathing

Enchant creature
{R}: Enchanted creature gets +1/+0 until end of turn.

Bird Maiden

The Brute

Enchant creature
Enchanted creature gets +1/+0.
{R}{R}{R}: Regenerate enchanted creature.

Blood Lust

If target creature has toughness 5 or greater, it gets +4/-4 until end of turn. Otherwise, it gets +4/-X until end of turn, where X is its toughness minus 1.