Yoshi P, is this what you wanted? (Terra Branford Blues)
Welp, it happened. After 3 weeks, a ballpark 650-700 kills, and 145 Ultros cards, Terra dropped for me tonight.
http://i.imgur.com/ZsZolG4.png
(Only 134 shown since I didn't start keeping my cards until after my first farm session.)
I made many friends, and even some enemies along the way. I mostly stayed patient but sometimes lost my cool. I questioned my sanity, my faith, my life choices, and at one point I even submitted a bug report.
This wasn't a totally new phenomenon. It took me something like 25 windows to catch a Bombardfish of all fishes. I lost 34 Neptos before I finally caught one. Bahamut took me 18 hours of Elmer and one zodiac item took me 42 runs of Stone Vigil.
I know I don't need the card, I just wanted it. But to see a hundred Terras drop in the very same fights I was in, to see person after person join my party to get Terra within a couple kills, it ate away at me. Most people just laughed or cried with me, but some teased and taunted. And what was I getting through all of this? Feeble light and 15 soldiery per kill.
The thing is, I don't believe this should happen. Is this what Yoshi P wants? For some people to suffer while achieving their in-game goals? Nobody should have to play for hundreds of hours to accomplish the very same thing that was accomplished by thousands of others after only a few minutes. This game needs a safety net for their RNG. I wouldn't be mad if I knew Terra had an abysmal drop rate, but she doesn't. I was just abysmally unlucky.
FWIW, in my experience, Terra seemed to be roughly a 5-10% drop rate and Ultros is about 20-25%. The actual chance of not getting her in my first 650 kills at 5% drop rate was 3.3x10^-15, or .0000000000033%.
In conclusion, the horror stories are true, and you don't want to wish them on your worst enemy. If you don't believe it, then it simply hasn't happened to you... yet.