Nifft, I like the HD steps you have in Fae-Touched and Frost-Fuzed, perhaps an entire list of templates with an appropriate feat prereq in the same format?
Deathbred Summons [General]
Prereq: Spell Focus (Necromancy)
Your summoned critters are infused with Negative Energy and can be turned as Undead.
HD 1-6: +1D6 negative energy damage to natural attacks
HD 7-11: above plus inflict Fatigue with each successful attack (as the spell touch of fatigue)
HD 12+: above plus primary natural attack drains 1 level (Fort save vs spell to negate)
Stealthy Summons [General]
Prereq: Spell Focus (Illusion)
Your summoned critters are initially invisible (until they attack). Even after they attack, they are under the effect of an undispellable blur effect for the duration of the summoning spell.
HD 1-6: Mirror Image
HD 7-11: Above plus under the effect of Blur for the duration of the spell
HD 12+: Above plus initially invisible (until they attack). The Mirror images are not invisible.
? eh/ this is why I tend to avoid spell/feat creation

Much prefer to stick to rules mechanics
