Sure, I'll bite.
Testing in another deck, regardless of the comparisons, is not testing in this deck. Thrun in Bant is different than Thrun in Rock. The purpose and ways to take advantage of are almost completely unique to each deck. Test it in Rock and I'll be able to consider your testing valid to The Rock.
I mentioned Knight as being cut because that's were you went to making comparisons. That in it's self leaves me to think that you're considering cutting knight (Mind you, I also advised against that exchange). If it's not replacing Knight, why is it being compared? I was confused why it was not being compared to the card it'd actually replace as opposed to one it'll be alongside. When you do that, you might as well pick something like
forest and start comparing there.
As far as Thrun being a "perfect threat", it's not. The best part about that is that nothing is (not even Knight). That's the point of magic being versatile. Everything has ways to be answered. The point of Thrun is to open an avenue of attack that we typically do not have (self-protected threat). Thrun isn't always the ideal threat, but by no means is it terrible as a threat in general. Or, are you insisting that by not being the largest creature with a relevant ability(s) to the match on the battlefield it's terrible?
If that is what you're looking for, I would advise you to try something like Reanimator as they will always have a "Perfect Threat" (if you do, can you also move to my meta? I like byes).
Liliana is possible from Bug, not Miracles though (at least no list I've seen). Between the two (which are my main reasons to advocate Thrun), Counters are more likely than Liliana. Adjusting to make it one deck instead of two does skew the truth a little. When you start looking at an overall meta as well there is more targeted removal and counters than there are Liliana.
Gofy vs Goyf is a staring competition (Someone has to flinch). When you add more Goyf to the table than the other person, you can typically make that a win. Thrun operates as a Goyf in that fight. What do 2 Goyf do in combat? They bounce off of each other. What do Goyf do when running into Thrun? They bounce back. Granted, you'll have to regenerate Thrun, but the same result is achieved. What happens if you attack with Goyf + Thrun into Goyf? You deal damage to the opponent. Again, same result (regen needed). You
may deal a little less damage but not by much (as goyf is typically a 5/6 and 5-4=1).
Preferences aside, it seems as though you're against Thrun due to your experiences with trying it in another deck. May I remind you, the deck you're comparing to is using
AN ENTIRELY DIFFERENT COLOR (I can bold what I think are important points as well :wink:). Perhaps you should try it in this deck instead of thinking that the logic for that deck applies to this one. Also, the format may be different than what you originally tested in.