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.

Thundermare

Haste (This creature can attack and {T} as soon as it comes under your control.)
When this creature enters, tap all other creatures.

Slith Firewalker

Haste
Whenever this creature deals combat damage to a player, put a +1/+1 counter on it.

Vulshok Sorcerer

Haste
{T}: This creature deals 1 damage to any target.

Granite Grip

Enchant creature
Enchanted creature gets +1/+0 for each Mountain you control.

Arc Lightning

Arc Lightning deals 3 damage divided as you choose among one, two, or three targets.

Thoughtbound Primoc

Flying
At the beginning of your upkeep, if a player controls more Wizards than each other player, the player who controls the most Wizards gains control of this creature.

Mogg Flunkies

This creature can't attack or block alone.

Seal of Fire

Sacrifice this enchantment: It deals 2 damage to any target.

Jackal Pup

Whenever this creature is dealt damage, it deals that much damage to you.

Mountain

Spin Engine

{R}: Target creature can't block this creature this turn.

Wall of Stone

Spark Elemental

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