For example, if a DM designs a closed dungeon adventure with a lair guarded exclusively by golems, the casters are likely to be rather "unbalanced" due to lack of opportunity. If he designs a political adventure where combat is discouraged, the fighter is likely to feel rather "unbalanced", but the bard might suddenly feel overpowered. These kinds of things outweigh the basic action resolution mechanics.
Never understood that. It's hard to see how a DM runs a game without exercising all kinds of discretion, whether he wants to or not.
Oh man, I remember when a DM tried to nerf my Druid with Golems. Did you know Druids can spontaneously cast Summon Nature's Ally? I bet you did!
Do you know how summons fare versus Golems? Actually, all said and done, Wildshape+Companion+Summons are just fine at taking down golems, and faster than our barbarian did too.
Now the Warlock felt pretty boned, but hey, his fault for picking a gimp caster.