>>47748853Pretty much all of them in my Opinion but give priority to the ones you use the most and/or have above 1/5. Consider this about 6EXing a support: it's +40 on both defenses and +100 HP.
In my opinion the ones with the most raw benefit are:
>SkylaGoing from a 3* to a 20/20 5* seriously jacks up her defenses which become massive when you stack the defense buffs and the potions. She evwn gets attack buffs on her Sync.
>DawnMakes her near unkillable by anything physical and at 3/5 er Sync Move not only buffs but also does a move gauge refresh which is way better than you think.
>SS ElesaBenefits a lot not only from the HP buff, but also from the fact that even at 1/5 she can be a sync move battery by either triggering Leg Up 2 or MP Refresh ln Breathtaking, and capitalize with her double sync buff.
>JasmineThe HP and Special Defense Buff makes her take all kinds of hits better, on top of pretty useful stuff tied to her Sync Move like Rejuvenate and Recuperation, as well as going Mega and gaining Last Word.
Mine isn't EX because I am working on Sabrina, who is getting her EX at the end of the month, and she is in a pretty similar boat.