Casting of Bones
{2}{B}
Enchantment -- Aura
Enchant creature
When enchanted creature dies, draw three cards, then discard one of them.
Krovikan Sorcerer
{2}{U}
Creature -- Human Wizard
1/1
{T}, Discard a nonblack card: Draw a card.
{T}, Discard a black card: Draw two cards, then discard one of them.
Soldevi Sage
{1}{U}
Creature -- Human Wizard
1/1
{T}, Sacrifice two lands: Draw three cards, then discard one of them.