Numbing Dose
{3}{U}{U}
Enchantment -- Aura
Enchant artifact or creature
Enchanted permanent doesn't untap during its controller's untap step.
At the beginning of the upkeep of enchanted permanent's controller, that player loses 1 life.
Soul Tithe
{1}{W}
Enchantment -- Aura
Enchant nonland permanent
At the beginning of the upkeep of enchanted permanent's controller, that player sacrifices it unless they pay {X}, where X is its mana value.