EzekielRaiden
Follower of the Way
Call me cynical, but having seen the rabid antipathy of a vocal minority for anything like "similar potent effects" being given to Fighters...I'm skeptical. I find it much more likely that it will be seen at best as a huge concession already given, justifying cutbacks elsewhere, or as already too much of a concession, one that must be pared back to be "proper."I hear you.
It is important, the power of a martial effect must be appropriate to the level. It must not be assumed to be less powerful than magic. When a martial effect and an arcane effect are the same level, they must be equal in potency and effectiveness.
To be fair, determining the level of a martial effect can be tricky. For example, an Eldritch Knight doesnt get spells until later at level 3, and wont get slot 4 spells until level 19! The Fighter has powerful damage dealing effects, and other kinds of effects delay until later levels. But once the "slot" of an effect is determined, it must be equal to a spell of the same slot.
Likewise, a Fighter or other martial class can have class features that are power effects at low level. For example, I feel the Eldritch Knight needs a magical fighting style at Level 1. Essentially, this "Elven Fighting Style" swaps the medium and heavy armors for an always-on Mage Armor spell instead, and additionally chooses a cantrip from the Wizard spell list. Typically, the fighting style makes the Mage Armor appear as if "silky fine chain mail". This access to the spell and cantrip is full-on magic at level 1, and balances well.
A nonmagical Fighter might use a fighting style to access similar potent effects, albeit nonmagical.
That's been a long-running problem with solving these issues. You're lucky if you get even as far as two steps forward, one step back.