Foul-Tongue Invocation
Instant
As an additional cost to cast this spell, you may reveal a Dragon card from your hand.
Target player sacrifices a creature of their choice. If you revealed a Dragon card or controlled a Dragon as you cast this spell, you gain 4 life.
Printings & Conditions (2)
Dragons of Tarkir (DTK)(Dragons of Tarkir)#102Uncommon
Iconic Masters (IMA)(Iconic Masters)#91Common