Akroan Mastiff | Creature | Dog | {W}, {T}: Tap target creature. | Zoltan Boros
Cloaked Siren | Creature | Siren | Flash (You may cast this spell any time you could cast an instant.)
Flying | Mark Zug
Countermand | Instant | | Counter target spell. Its controller mills four cards. | Clint Cearley
Rotted Hulk | Creature | Elemental | | Raymond Swanland
Bladetusk Boar | Creature | Boar | Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.) | Sam Burley
Desecration Plague | Sorcery | | Destroy target enchantment or land. | Ralph Horsley
Market Festival | Enchantment | Aura | Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional two mana in any combination of colors. | Ryan Barger
Ravenous Leucrocota | Creature | Beast | Vigilance
{6}{G}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.) | Christopher Burdett