
Caustic Tar | Enchantment | Aura | Enchant land
Enchanted land has "{T}: Target player loses 3 life." | Jung Park

Feast on the Fallen | Enchantment | | At the beginning of each upkeep, if an opponent lost life last turn, put a +1/+1 counter on target creature you control. | Dave Kendall

Stab Wound | Enchantment | Aura | Enchant creature
Enchanted creature gets -2/-2.
At the beginning of the upkeep of enchanted creature's controller, that player loses 2 life. | Scott Chou