Tasigur, the Golden Fang

Text:

Delve (Each card you exile from your graveyard while casting this spell pays for .)
: Put the top two cards of your library into your graveyard, then return a nonland card of an opponent's choice from your graveyard to your hand.

Rulings:

• 11/24/2014 You exile cards from your graveyard at the same time you pay the spell’s cost. Exiling a card this way is simply another way to pay that cost.
• 11/24/2014 Delve doesn’t change a spell’s mana cost or converted mana cost. For example, the converted mana cost of Tasigur’s Cruelty (with mana cost <img src="/Handlers/Image.ashx?size=small&amp;name=5&amp;type=symbol" alt="5" align="absbottom" /><img src="/Handlers/Image.ashx?size=small&amp;name=B&amp;type=symbol" alt="Black" align="absbottom" />) is 6 even if you exile three cards to cast it.
• 11/24/2014 You can’t exile cards to pay for the colored mana requirements of a spell with delve.
• 11/24/2014 You can’t exile more cards than the generic mana requirement of a spell with delve. For example, you can’t exile more than five cards from your graveyard to cast Tasigur’s Cruelty.
• 11/24/2014 Because delve isn’t an alternative cost, it can be used in conjunction with alternative costs.
• 12/7/2018 Tasigur’s last ability doesn’t target any card or player. You choose an opponent as the ability resolves and that player chooses a nonland card after you put the top two cards of your library into your graveyard.
• 12/7/2018 The chosen opponent can choose any nonland card in your graveyard, not just one of the cards that was just put there.