Rift
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It's clear that a unit specialist will have stronger units, but not so strong that you should rely solely on them. The weak point of such specialists lies in their strength – a mage can weaken them a couple of times with "Earth Shock" under "Magic Ward," and then there's no advantage left. You can keep Sandro's cloak; I've already understood your argument. ;)
Sorry for the off-topic.
Next, Jalib is the second least effective hero of the Academy. He might be strong in duels, but I don't see the point in using him as a main hero – his special ability won't work against a warrior hero, and against a normal mage player who is aware of his ability and uses area-of-effect spells, it won't work either. As a result, we get a rather mediocre specialist who is unlikely to compete with the other Academy heroes.
Sorry for the off-topic.
Next, Jalib is the second least effective hero of the Academy. He might be strong in duels, but I don't see the point in using him as a main hero – his special ability won't work against a warrior hero, and against a normal mage player who is aware of his ability and uses area-of-effect spells, it won't work either. As a result, we get a rather mediocre specialist who is unlikely to compete with the other Academy heroes.