I'm liking the use of effect points to determine effect of a spell -however, is this making it too fiddly ? (ie giving the caster more options that he has to specify when casting slows things down, potentially). Thoughts ?
Add to spell description for summon animal:
If desired, effect points may be spent to increase duration or numbers summoned. For both cases, square the number of points allocated (up to a maximum of 5) to determine the number of extra hours duration, or the number of creatures summoned in addition to the first one. All extra creatures will be duplicates of the first as regards Stats.