Ditch TP in exchange for unique systems.

[northernsky]

Alternatively, since I think the major problem for me (a main mage player), is that on casters TP is useless and just wastes space on the UI. Perhaps a unique system for DoM could be a fair compromise, while experimenting with the aforementioned ideas (or others) on DoW classes.

We have mostly discussed about ways to gain TP, but not much about ways to use it.

Mages don't necessarily have to use, or consume TP the same way the other classes do. There could be modifiers on certain spells, specific combos, or abilities (think blissful mind, necrogenesis, parsimony) based on TP.

TP in this case could be harder to build, i-e longer to accumulate and faster to deplete when the weapon is not pulled (which would actually lead to interesting strategies), but would not be consumed by individual abilities.

Just random examples based on the current system that could promote class differentiation

[Jinko]

TP in this case could be harder to build, i-e longer to accumulate and faster to deplete when the weapon is not pulled (which would actually lead to interesting strategies), but would not be consumed by individual abilities.

I don't believe you can regen MP whilst in battle stance. (besides the +3 refresh effect and Magi)

[northernsky]

I don't believe you can regen MP whilst in battle stance. (besides the +3 refresh effect and Magi)

Yeah, that's the trade-off if TP considerably boosts spells and abilities potency.

You could alternate, for a moment in the fight, between a more agressive style based on TP-boosted abilities but fast MP depletion, and a classical system with little to no TP gain but steadily replenishing mp pool.
Also, if, say, thundaga consumes half the mp when used in combo and tp > 1500, or parsimony recovers more mp proportional with TP, there would be ways to play for a while on "TP mode".

Honestly I have not thoroughly thought up that idea, just said that, if well balanced, it could lead to interesting strategies