All pets are researched? I thought there was at least one per tier you could buy. Necros have to research some of their lich/pet buff spells too which are slightly important. I know ench/wiz have researched stuff but enchanters are so OP anyway and no one cares about wizards.
Only priests/monks get the full easy-mode.
*Oh yeah.. not sure if this is different since I did it in 2010 on blue but I remember training my research up quite a bit through the guildmaster. I spent over 1k on it but it was worth the hassle. Classic changes might have changed that since then for all I know.
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