[virpyre]

Physical Shield - Because you can get a Muitiplier of 50+ in the Graveyard Pass, that's pretty much it's only good use is for combos.

Enflame - It's better the Force Shield because you can get people to hate you really fast, since hostile npcs swarm around traders, and when a guard comes he attacks you instead of the hostile npcs. So picking Enflame would be your best choice, since it doesn't attack traders or throw npcs miles away.

Lightening - This spells kinda useless since it takes while to upgrade, Fireball would be a better choice since you can Charge it, and the longer you charge it the more damage and higher blast range it does. Max Lightening does 80 damage a hit, Max Fireball does 700 damage it's also good for knocking enemies down (Spell Level 3) and using a slow time to bash them again before the get to there feet.

Slow Time - Is good for all classes since you can get in more damage, hit them before they hit you, it's also good for mage classes since you'll be running alot.

Heal - Get at least level 2 Heal since some quest you have to escort npcs like the Hobbe Cave Rescue since most Hobbes go after the boy instead of you anyway.

Ghost Sword - If you're going Archer class or Mage Class then you're going to need GS to keep people off your back while you're trying to focus you magic on the toughest hostile.

Multi-Strike - Good for takening down stuborn Minions, and almost any boss in the game, it's a must if you're a pure fighter.

For me though I have to pick these:
Heal - Lv. 2 (Quest Purposes)
Muilti Arrow - Lv. 2 (Quest Purposes)
Enflame - Lv. 3 (For Knock Back)
Multi-Strike - Lv. 4 (x4 Strikes)
Slow Time - Lv. 4 (Balverines/Trolls/Golems/Minions)
Physical Shield - Lv. 4 (Great for Combos)
Assassin rush - Lv. 3