Unicorns are an awesome pet... combine that with a mystic/mage tamer and you can both be 100% immune to poison... it's awesome.
Sitting here drinking coffee and thinking about how things were before the pet revamp. Pretty much the only pets you ever saw people using were GDs, Dragon Turtle Hatchlings and a mare rune beetle combo. A pair of unicorns were ok but very limited as were pretty much all pets. The pet revamp opened up so many possibilities even with the various fixes and nerfs. Unicorns are now a top shelf pet with a couple of builds and that innate poison immunity gives them a real edge in some encounters. I know you had high hopes for spiders and they kind of fell flat in the revamp. LOL my high hope was Mongbats would be 5 slot pets and have necro open to them and that fell flat. But still I could have never taken my Greater Mongbat to Navrey before and the little guy not only survive but actually get looting rights.
Guess I think that sometimes we get so caught up in the numbers and the best build for the most DPS that we forget some pets are just fun to pull out and go hunting with even if they are not the best pet or deliver the most DPS. LOL I had Goober (The Greater Mongbat) out on the boat last night and he was whacking a dread pirate. And I was on my Character named A Mongbat. Another player sailed by....... then stopped and came back. He said "Seriously you are killing pirates with a Mongbat!" Hey I was having fun and well a fully trained and 110 scrolled mongbat with a garg thrower tamer helping it goes fairly quick. Not as fast as using one of the big power pets but IT WAS FUN and DIFFERENT. Same as when I take Rudy the Llama out hunting.
If you think about it these off the wall pets like Goober, Rudy, Pigs, bulls lol greater chickens once trained are as or more powerful than pre revamp Nightmares. You can have a lot of fun and break the boredom of building one Chiv/AI pet after another. That btw is not directed at you MalagAste or anyone in particular. JUst a general statement that sometimes less might = less in damage and power but = far more in interesting and entertainment value.