Hi Dr
Recalling from my still-fresh memory, I haven't experienced any grenades from enemies, nor do they shoot area control special arrows. I guess this is where the difficulty comes in with tac mode.
I still get burned or frozen or poisoned but in very few occasions were more than two party members affected, and those two usually stands close.
I tend to let my mage leave the chain and stand behind the frontline, and cast elemental shield when in his turn, during combat, that way my ranger can safely shoot area control to enemies without worrying about affecting close combat teammates.
For example: Rouge start with haste + float + shadow clock
ranger shoot static cloud arrow, mage cast air shield, next turn rouge goes into the cloud and free DPS. If Rouge's hit point gets low, he can teleport back to the mage and get healed.
