Ple-Sen
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We can boost Albert Tyril, Myronaga Goran, and four others.
Seriously, I would buff Asmund and Aldric. The remaining two charges can be spent on someone from the melee units (ideally, fast ones). Alternatively, you can buff the ressurrectors.
Added 2 minutes later
Jert is still a decent candidate. He deals a lot of damage. He already has a good accuracy, but extra accuracy is never a bad thing. Besides, his evasion isn't the highest.