Serra Angel | Creature | Angel | Flying, vigilance | Greg Staples
Air Servant | Creature | Elemental | Flying
{2}{U}: Tap target creature with flying. | Lars Grant-West
Illusionary Armor | Enchantment | Aura | Enchant creature
Enchanted creature gets +4/+4.
When enchanted creature becomes the target of a spell or ability, sacrifice Illusionary Armor. | Mathias Kollros
Sengir Vampire | Creature | Vampire | Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by Sengir Vampire this turn dies, put a +1/+1 counter on Sengir Vampire. | Kev Walker
Vampire Warlord | Creature | Vampire Warrior | Sacrifice another creature: Regenerate Vampire Warlord. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.) | Wesley Burt
Battle Sliver | Creature | Sliver | Sliver creatures you control get +2/+0. | Slawomir Maniak
Enlarge | Sorcery | | Target creature gets +7/+7 and gains trample until end of turn. It must be blocked this turn if able. (A creature with trample can deal excess combat damage to the player or planeswalker it's attacking.) | Michael Komarck
Woodborn Behemoth | Creature | Elemental | As long as you control eight or more lands, Woodborn Behemoth gets +4/+4 and has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.) | Matt Stewart