Which is the best beast to upgrade? Going through my list of beasts, it seems like a rough decision to make. Are there any beasts you turn to on a regular basis? I do on my very first snake, which was an adder, who is 25 now. Just seems like a waste of a battle stone.
I like the Winterspring Cub, he's my go to pet to level my lowbies. I take him to The Veiled Star and he wipes the floor with the critters. Would be happy to make him Rare (They're Uncommon)
I had to go the giraffe. It took me soooo long to find one and it was a poor quality. I felt I deserved a rare version after a week of camping, so I made one.
Used mine on Baby Blizzard Bear, wanted to make a team utilizing his Blizzard spell and that' what really made me decide. He also can't be traded or obtained any more.
My decision would be based entirely on favoritism instead of utility. My Sprite Darter, Fabulosity, is my absolute favorite and a pet I take everywhere with me. However, since sprite darters are already of the rare status, I would then use it on my pet Bombling. That little bugger has seen some things while accompanying my engineer tank through hell and high water.
So if you and that Adder are good pals, I'd say go for it and make him feel like he's earned his place in your collection.
Wish there was more info on what critter gets the most out of it. I used a stone on my Creepy Crate just because, and my health went up 5 I got a universal stone and thinking of doing it on someone I don't want to farm again (Baby Ape? Spawn of Onxyia?) Also wondering if a grey would get more out of it then a green or if it's a static upgrade. Trying to save my stones till i get more pets, maybe then it will be obvious or more info will be out there.
One more vote for Feline Familiar, I haven't even used him in synergy darkness teams yet and still find him to be quite good. Also, it's a cat in a hat.