If you don't already have her, there will be Geranium reissue event in arround 1 month (after Star Lily's and Lechenaultia). Despite she is just and event girl, she has the x1.2 skill activation (and not a nerfed version of it). She is a good alternative if you lack of this kind of ability.

But... it's just me or in her bloomded form Geranium no longer has this ability? According to the wikia:

Blooming Ability:
During combat, increase her own attack power by 10%, and defensive power of three party members, including herself, by 10%. Decrease damage received by 1.5% ( stackable up to 20% when combine with other similar abilities)

nothig is said about skill activation...