Accorder's Shield {0} (0)
Artifact — Equipment

Equipped creature gets +0/+3 and has vigilance. (Attacking doesn't cause it to tap.)
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Accursed Spirit (4)
Creature — Spirit (3/2)

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Air Servant (5)
Creature — Elemental (4/3)

Flying
: Tap target creature with flying.

Ajani, Caller of the Pride (3)
Legendary Planeswalker — Ajani

+1: Put a +1/+1 counter on up to one target creature.
−3: Target creature gains flying and double strike until end of turn.
−8: Create X 2/2 white Cat creature tokens, where X is your life total.

Angelic Accord (4)
Enchantment

At the beginning of each end step, if you gained 4 or more life this turn, create a 4/4 white Angel creature token with flying.

Angelic Wall (2)
Creature — Wall (0/4)

Defender (This creature can't attack.)
Flying

Armored Cancrix (5)
Creature — Crab (2/5)

Artificer's Hex (1)
Enchantment — Aura

Enchant Equipment
At the beginning of your upkeep, if enchanted Equipment is attached to a creature, destroy that creature.

Banisher Priest (3)
Creature — Human Cleric (2/2)

When Banisher Priest enters the battlefield, exile target creature an opponent controls until Banisher Priest leaves the battlefield. (That creature returns under its owner's control.)

Barrage of Expendables (1)
Enchantment

, Sacrifice a creature: Barrage of Expendables deals 1 damage to any target.

Blightcaster (4)
Creature — Human Wizard (2/3)

Whenever you cast an enchantment spell, you may have target creature get -2/-2 until end of turn.

Blood Bairn (3)
Creature — Vampire (2/2)

Sacrifice another creature: Blood Bairn gets +2/+2 until end of turn.

Bonescythe Sliver (4)
Creature — Sliver (2/2)

Sliver creatures you control have double strike. (They deal both first-strike and regular combat damage.)

Bramblecrush (4)
Sorcery

Destroy target noncreature permanent.

Brindle Boar (3)
Creature — Boar (2/2)

Sacrifice Brindle Boar: You gain 4 life.

Bubbling Cauldron (2)
Artifact

, , Sacrifice a creature: You gain 4 life.
, , Sacrifice a creature named Festering Newt: Each opponent loses 4 life. You gain life equal to the life lost this way.