Cackling Witch
{1}{B}
Creature -- Human Spellshaper
1/1
{X}{B}, {T}, Discard a card: Target creature gets +X/+0 until end of turn.
Deepwood Elder
{G}{G}
Creature -- Dryad Spellshaper
2/2
{X}{G}{G}, {T}, Discard a card: X target lands become Forests until end of turn.
Hammer Mage
{1}{R}
Creature -- Human Spellshaper
1/1
{X}{R}, {T}, Discard a card: Destroy all artifacts with mana value X or less.