Magic Efficiency

Each spell that uses magic points has a damage-per-magic-point efficiency (Dmg/MP).

Here, 'damage' refers to the raw 'V value', as explained on the Magic Damage page. (The damage in this table does NOT factor in magic burst, enemy weakness, the player's INT, multiple-target damage reduction, affinity, weather-based equipment, etc. etc.)

In general, higher damage spells tend to have a higher Dmg/MP efficiency.

Spell	Earth			Water			Wind			Fire			Ice			Lightning			Light
	Dmg	MP	Dmg/MP	Dmg	MP	Dmg/MP	Dmg	MP	Dmg/MP	Dmg	MP	Dmg/MP	Dmg	MP	Dmg/MP	Dmg	MP	Dmg/MP	Dmg	MP	Dmg/MP
I	10	9	1.11	16	13	1.23	25	18	1.39	35	24	1.45	46	30	1.53	60	37	1.62	14	15	0.93
II	78	43	1.81	95	51	1.86	113	59	1.92	133	68	1.96	155	77	2.01	178	86	2.07	85	57	1.49
III	210	92	2.28	236	98	2.41	265	105	2.52	295	113	2.61	320	120	2.67	345	128	2.70	198	96	2.06
IV	381	138	2.76	410	144	2.85	440	150	2.93	472	157	3.01	506	164	3.09	541	171	3.16	N/A	N/A	N/A
I-ga	56	37	1.51	74	47	1.57	93	57	1.63	120	71	1.69	145	82	1.77	172	95	1.81	50	41	1.22
II-ga	201	109	1.84	232	123	1.89	266	138	1.93	312	158	1.97	350	175	2.00	392	193	2.03	180	120	1.50
III-ga	434	211	2.06	480	231	2.08	527	252	2.09	589	277	2.13	642	299	2.15	697	322	2.16	N/A	N/A	N/A
AM I	577	337	1.71	630	368	1.71	552	322	1.71	657	383	1.72	526	307	1.71	603	352	1.71	125 (256?)	100	1.25 (2.56?)