Bar the Door

Creatures you control get +0/+4 until end of turn.

Tower Defense

Creatures you control get +0/+5 and gain reach until end of turn.

Silklash Spider

Reach
{X}{G}{G}: Silklash Spider deals X damage to each creature with flying.

Nyx-Fleece Ram

At the beginning of your upkeep, you gain 1 life.

Slagwurm Armor

Equipped creature gets +0/+6.
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery. This card enters unattached and stays on the battlefield if the creature leaves.)

Refuse to Yield

Target creature gets +2/+7 until end of turn. Untap it.

Brave the Sands

Creatures you control have vigilance.
Each creature you control can block an additional creature each combat.

Unhallowed Phalanx

Doran, the Siege Tower

Each creature assigns combat damage equal to its toughness rather than its power.

Ulvenwald Observer

Whenever a creature you control with toughness 4 or greater dies, draw a card.

Soulless Jailer

Permanent cards in graveyards can't enter the battlefield.
Players can't cast noncreature spells from graveyards or exile.

Stoneskin

Flash
Enchant creature
Enchanted creature gets +0/+10.

Behind the Scenes

Creatures you control have skulk. (They can't be blocked by creatures with greater power.)
{4}{W}: Creatures you control get +1/+1 until end of turn.

Rogue's Passage

{T}: Add {C}.
{4}, {T}: Target creature can't be blocked this turn.

Aegis of the Heavens

Target creature gets +1/+7 until end of turn.

Giant Ox

Giant Ox crews Vehicles using its toughness rather than its power.