Thank you very much for your answer.
I have few experience yet in this game, so my current team looks like this:
I like the 5* Igniscapra goat with Novematrona in the FL, it’s usually very effective in PvE and so I put the goat +9.
When I play, usually there will be a bunch of Rockoids at the end of the Team. So after I cannot throw anymore, I send Dragaia to the end, and the Rockoids will be useful for Astrogolem to fast charge. So I thought he might be a good choice to +9 him to become very fast.
On the other hand, like you said, Dolphreeze is often very useful in PvP and PvE.
Malwing would benefit from the entrance speed, but I’m not a very good player with him yet. I only know that I like to push him back to the teams end before any Rockoids are created to gain a second passive time stun.
I still see the +3 +6 +9 time reduction benefit more value than the speed benefit, but I know in PvP the speed might make the difference, but I’m not there yet, so I hardly understand.