So I figured I'd look about for a good alternative class feature for wizards to loose their familiar.
Lo and behold I can't find one, anybody got any suggestions?
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Dragon #357. The Arcane section of that issue's Class Acts series is titled "Transversed Arcana," and has six alternate class abilities for arcane spellcasters, each of which requires giving up a familiar:
Aligned Spellcaster - Choose a non-neutral portion of your alignment. Spells you cast have that alignment descriptor (unless they have the opposite alignment descriptor), and such spells that are targeted against creatures of the opposite alignment are at +1 caster level (+2 if it has the opposing alignment subtype).
Beleaguered Spellcaster - When you take damage equal to three times your spellcaster level from one attack (up to [1 + your spellcasting ability modifier] times per day), the next spell you cast is automatically empowered or maximized (your choice) without increasing the casting time or spell level.
Disciple of Boccob - You are treated as 1 level higher to qualify for magic item creation feats, and magic items you create are treated as being +1 caster level higher. If you destroy a permanent magic item, you lose all arcane spellcasting abilities for 1 day per caster level of the destroyed item.
Eidetic Spellcaster - You do not need a spellbook, either to prepare spells or record new ones. You gain/learn new spells normally otherwise, including paying the appropriate gold pieces (for special incenses) when acquiring new spells that aren't from gaining a level.
Impromptu Metamagic - Each day you choose a metamagic feat you have. A number of times per day equal to (5 - the spell level increase of the feat) you may spontaneously apply that feat to a spell as you cast it, with no increase in casting time or spell level. You must still have the ability to cast spells of the level the spell would have if the feat were applied to it normally.
School Mastery - Choose a school of magic (if you're a specialist, it must be your specialized school). You gain +1 caster level to spells of that school, plus a special effect based on the school (I am so not listing all of those, however).