Eye of Newt, Toe of Frog

Lizard or Frog Offering (You may cast this card any time you could cast an instant by sacrificing a Lizard or Frog and paying the difference in mana costs between this and the sacrificed creature. Mana cost includes color.)
You may sacrifice a creature. Then, if you have sacrificed a Lizard and a Frog this turn, destroy two target creatures, draw 4 cards, and gain 7 life.
"Well what do YOU put in a salad?!"