Viashino Sandscout

Haste (This creature can attack and {T} as soon as it comes under your control.)
At the beginning of the end step, return Viashino Sandscout to its owner's hand. (Return it only if it's on the battlefield.)

Threaten

Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn. (It can attack and {T} this turn.)

Beacon of Destruction

Beacon of Destruction deals 5 damage to any target. Shuffle Beacon of Destruction into its owner's library.

Kamahl, Pit Fighter

Haste (This creature can attack and {T} as soon as it comes under your control.)
{T}: Kamahl, Pit Fighter deals 3 damage to any target.

Phyrexian Vault

{2}, {T}, Sacrifice a creature: Draw a card.

Incinerate

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

Prodigal Pyromancer

{T}: Prodigal Pyromancer deals 1 damage to any target.

Bogardan Firefiend

When Bogardan Firefiend dies, it deals 2 damage to target creature.

Furnace Whelp

Flying
{R}: Furnace Whelp gets +1/+0 until end of turn.

Shock

Raging Goblin

Haste (This creature can attack and {T} as soon as it comes under your control.)

Blaze

Lightning Elemental

Dragon's Claw

Whenever a player casts a red spell, you may gain 1 life.

Mountain

Bloodrock Cyclops

Bloodrock Cyclops attacks each combat if able.

Thundering Giant

Spitting Earth

Spitting Earth deals damage to target creature equal to the number of Mountains you control.