IMO if you feel like research is something you want to do, just use training points and pay the cash to level up research as a mage. Doing the old fashioned way is way too much of a PITA. On my necro I always kept words and skilled up research by doing combines etc. On mage, I tried it for a few levels and then just said F it.
By the time I'd get the right components and words and then paid the $ to buy the previous level pet spells that are included in the combine I was at the next spell circle and didn't need it anymore.
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