At eight mana, it destroys three, but eight mana is a massive amount to spend on any one spell
Nessian Wanderer, Sythis, Harvest's Hand, Courser of Kruphix, Mesa Enchantress, Satyr Enchanter, Setessan Champion, Verduran Enchantress, Eidolon of Blossoms, Narci, Fable Singer, Calix, Destiny's Hand, Enchantress's Presence, Love Song of Night and Day 12 card draw
Remember, there are two sides to every story Rare is a triangle with three sides
If you choose not to exile it, or you can't exile it because the card has somehow left the graveyard before the ability resolves, the ability simply doesn't do anything as it resolves
And we all know FF7 Cid is the best Cid anyway
Cavern of Souls , a powerful and sought-after land card, is going to be reprinted into Magic the Gathering's Standard format