Patient Gamers

I've been playing Tactics Ogre Reborn and just got to act 4 and.... Man I really want to enjoy this game, but it's difficult, and the board is rarely even in a way that's frustrating. For example, casters are clearly stronger than martial units, but they need mp. Pretty typical. But, during combat your units can pick up cards that give buffs like increased mp generation or increased activation of automatic skills (which do things like generate mp, cause buffs/debuffs, one of them fully doubles healing done for the turn). I like the card system, somewhat, because it pressures you to move up as opposed to bottlenecking and defending set points whenever possible. But, once you're a little way into the game, enemy casters come in with four cards, one of increased magic damage, one of increased auto skill proc, two of mp regeneration. Now your casters are weak as shit and need to run to the front lines to get the buffs necessary to cast high level spells more than once every few turns, while the enemy casters are goddamn artillery pieces that can attack from across the entire map. Your martials need to run through artillery fire and break through enemy tanks to target the back line (oops there are skills that tanks have that restrict movement so you have to kill them) and your casters can't cast more than once every handful of turns, and can't consistently benefit from the "your spells have longer range" auto skill, so in some fights you're just beholden to rng of your enemy skills procing and cards you want/need showing up in places your casters can access without ending in a meat grinder.

It's the kind of game I wish I had a friend who had beaten it a couple times to give me advice on. I'm open to looking up builds and strats online, but since it's a remake of a game that was originally on SNES and then PSP, a lot of balance changes have occurred and sometimes you'll find a forum post going on about how good xyz build is, only to later find someone else remarking "oh yeah that worked amazingly on the PSP version but it doesn't work at all anymore"