The previous thread was a success. It asked the question what needs to change to balance the mages, and it got it's answer. Short term errata is needed, long term the schools of magic need to be balanced. Maybe this thread is unnecessary as we seem to already have a clear consensus. The least disruptive way to balance things is to play with spellbook construction instead of changing card functionality. Either limit strong mages SP or reduce the SP cost of 'mandatory spells'. I like Zuberi's idea of just attacking the direct number of SP instead of playing with several spells. I could see having a changing spellbook points allowed per mage for tournaments that could be tuned with playtesting between the release of expansions.
Let's assume 4 dispells, 4 dissolves, 3 teleports, 2 nullifys, and 2 seeking dispells are mandatory. That makes an SP bonus of 14 for wizard, and 18 for water wizard, and a warlord tax of an extra 14.
So my new proposal would be tournments SP list is
Water wizards: 102 SP
Other wizards: 106 SP
Most Mages: 120 SP
Warlord: 134 SP
Should we give a little bonus to Johtori and warlock to compensate for their anti-nonliving cards they must add to compensate for their limited use innate abilities on their card?