I feel as though infi-cast should be redone. The current level of infi-cast that we have is really only good up to about level 9. Beyound this, your own simple cantrips rank up to be better.
I.E. - Infi-cast Magic Missile - 1d4+1 @ 1-2; 2d4+2 @ 3-4; 3d4+3 @ 5-6; 4d4+4 @ 7-8; 5d4+5 @ 9+.
As to where (Flare) is 1d6 for every 3 level. 1d6 @ 1; 2d6 @ 3; 3d6 @ 6; 4d6 @ 9; 5d6 @ 12; 6d6 @ 15; 7d6 @ 18; 8d6 @ 21 and so on up to 10d6 with a damage range of 10-60 Daze 1d4 @ 1 up to 10d4 (range 10-40) by 30 with a 1d2 round daze effect.
Level 30 Flare 10-60 (0 feats taken)
Level 30 Magic Missile 10-25 (2 feats taken)
Infi-cast / Spell Foci feats I feel would be more balanced if they were done by level in conjunction with where you Spell Foci is at.
I.E.
Spel Foc Evo (Infi-cast Magic Missial) should only take you to the original level cap of MM, 5d4+5; as where Greater Spell Foc Evo (Infi-cast Magic Missile) should continue to increase up to level 20, and Epic Foc up to level 30.
In the case of Infi-cast Magic Missile, T1 (Spell Focus) 5d4+5 is great at level 9 and can be useful up to level 15, but after that you have such a large pool of spells to pull from that do so much more damage, not to mention cantrips that are already refunded if you're not interrupted are at the point where they are doing the same amount of damage and some of them with added effects.
T2 (Greater Spell Focus) Magic Missile could be additional missiles, and by the time you are at level 20, it could gain an extra missile every 3 levels with an additional +1 damage on top of what it does already, for a total of 7 that do 1d4+2 each (7d4+14) making is 21-42.
T3 (Epic Spell Focus) Magic Missile could even continue this trend for a total of 11 missiles doing 1d4+3 each, for a total of 11d4+33 making is 44-77 and putting it just above cantrips since you've spent 3 feats getting there.
But I think this kind of change to INFI-CAST based on level in combination with Foci, Greater Foci and Epic Foci would make for a great addition to casters.
Spell Focus allows for inficast to go up to level 10. (Unlocks spell)
Greater Spell Focus allows for inficast to go up to level 20.
Epic Spell Focus allows for inficast to go up to level 30.
Granted you have the proper caster levels.
To further expand on this topic, infi-cast should be available to ALL casting classes. The spells gained should fit the class, such as Cleric infi-cast spells should come out of the cleric spellbook, with domain spells removed from the list. Keeping the same kind of set up for Wiz/Sorc with lower level spells, it would make playing a cleric as a primary caster a little more enjoyable since you will always have something you can use. With the same scheme of Foci up to level 10, Greater Foci up to level 20 and Epic Foci up to level 30.
And I do mean ALL classes that can cast, Bard, Paladin, Ranger, Druid, etc. These classes are just more limited on what they can cast, and maybe even some of their spells have cooldowns, but can still be cast more than just their spellbooks/memory would allow.
Right now we have (only for WIZ/SORC)
Endure Elements (Abjuration)
Melf's Acid Arrow (Conjuration)
See Invisibility (Divination)
Blindness/Deafness (Enchantment)
Magic Missile (Evocation)
Color Spray (Illusion)
Ray of Enfeeblement (Necromancy) (Borderline worthless if you ask me because you're really just hoping for your target to roll a 1 on the save for it to even work since it doesn't do damage damage.)
Burning Hands (Transmutation)
These are all great spells for their level and even in a way kind of good up to around level 15 or so, but they fall of their usefulness quickly after 10 when compared to refunded cantrips.
Cleric spell possibilities
Entropic Shield (Abjuration)
Cure Moderate Wounds (Conjuration)
Remove Blindness/Deafness (Divination)
Bless (Enchantment)
Sound Burst (Evocation)
Silence (Illusion)
Inflict Moderate Wounds (Necromancy)
Bull's Strength (Transmutation)
((( Below is still a WIP )))
Druid spell possibilities
(Conjuration)
(Divination)
(Enchantment)
(Evocation)
(Illusion)
(Necromancy)
(Transmutation)
Bard spell possibilities
(Conjuration)
(Divination)
(Enchantment)
(Evocation)
(Illusion)
(Necromancy)
(Transmutation)
Paladin spell possibilities
(Conjuration)
(Divination)
(Enchantment)
(Evocation)
(Illusion)
(Necromancy)
(Transmutation)
Ranger spell possibilities
(Conjuration)
(Divination)
(Enchantment)
(Evocation)
(Illusion)
(Necromancy)
(Transmutation)
ADDITIONAL COMMENTS / EDITS
EDIT (10/18/2024) - I think the same sort of thing should be done for all the spells granted by the Infi-cast system. Acid Arrow should do more damage per tick, not just more ticks. Giving it some level of power to get over enemies with acid resistance.
Things like see invisibility (spell focus), could grant true seeing (greater spell focus) on a 10m cooldown and lower the cooldown to 7 minutes for (epic spell focus). You can cast it before the cooldown ends, but it would only give you see invisible instead of true seeing.