Well, here's my bout~
1) This thing is so situational, yet it works wonder in a counterdeck. Have fun screwing Incarnate with it. Like, screwing it HARD.
2) OK, maybe not that situational. You can use this, carefully of course, to recover from Fire Shields or Thorn Carapace.
3) You might want to have this thing unupped when you fear the mulligan will screw you.
Note: My current ISP apparently blocked imgur (I changed ISP while I'm on vacation, hopefully I can return to my usual ISP by very late August), so text-only answers, please. Like, pretty please.