MTG-Guess the card from the flavor text

1.  Greatness, at any cost.                                                 Dark Confidant

2.  "(Z–>)90º – (E–N²W)90ºt = 1"                                            Niv-Mizzet, the Firemind

3.  "Day 31: I finally succeeded in my time reversal experiment!            Inspiration
    "Day 30: I might have a problem here."

4.  The smallest seed of regret can bloom into redemption.                  Swords to Plowshares

5.  Don't underestimate the aerodynamic qualities of the common goblin.     Goblin Grenade

6.  Fblthp had always hated crowds.                                         Totally Lost

7.  "Sorry I burned down your village. Here's some gold."                   Reparations

8.  Hatred outlives the hateful.                                            Rancor

9.  "If I wanted your opinion, I'd have told you what it was."              Stifle

10. "It hurts more if you think about it."                                  Duress