Contaminated Bond
{1}{B}
Enchantment -- Aura
Enchant creature (Target a creature as you cast this. ~this~ enters attached to that creature.)
Whenever enchanted creature attacks or blocks, its controller loses 3 life.
Imprison
{B}
Enchantment -- Aura
Enchant creature
Whenever a player activates an ability of enchanted creature with {T} in its activation cost that isn't a mana ability, you may pay {1}. If you do, counter that ability. If you don't, destroy ~this~.
Whenever enchanted creature attacks or blocks, you may pay {1}. If you do, tap the creature, remove it from combat, and creatures it was blocking that had become blocked by only that creature this combat become unblocked. If you don't, destroy ~this~.
Nettling Curse
{2}{B}
Enchantment -- Aura
Enchant creature
Whenever enchanted creature attacks or blocks, its controller loses 3 life.
{1}{R}: Enchanted creature attacks this turn if able.