Delve & flashback

[Prplprince]

i was wonder if I could use a card's delve ability when it gains flash back

Ex: I have  {Murderous Cut} In the yard and I target it with  {Snapcaster Mage}. Can I exile 4 cards in my yard and cast it for 1 black mana? And on a funny note if I can exile cards for delve can the card with delve exile itself and still resolve?

[rarehuntertay]

Yes, you can use delve with flashback.
No, you cannot exile the delve spell to itself, as it will be on the stack before costs are paid.

601.2a The player announces that he or she is casting the spell. That card (or that copy of a card) moves from where it is to the stack. It becomes the topmost object on the stack. It has all the characteristics of the card (or the copy of a card) associated with it, and that player becomes its controller. The spell remains on the stack until it's countered, it resolves, or an effect moves it elsewhere.

702.33a Flashback appears on some instants and sorceries. It represents two static abilities: one that functions while the card is in a player's graveyard and another that functions while the card is on the stack. "Flashback [cost]" means "You may cast this card from your graveyard by paying [cost] rather than paying its mana cost" and "If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack." Casting a spell using its flashback ability follows the rules for paying alternative costs in rules 601.2b and 601.2e-g.

702.65a Delve is a static ability that functions while the spell with delve is on the stack. "Delve" means "For each generic mana in this spell's total cost, you may exile a card from your graveyard rather than pay that mana." The delve ability isn't an additional or alternative cost and applies only after the total cost of the spell with delve is determined.

[Prplprince]

Thanks for being so thorough!