Cleric here about training?

[Foxplay]

As soon as you unlock specialization just spam the lvl 1 heal on yourself until it's above 50 this will ensure your locked to alteration spec

Ever so often some of the caster classes will want to set aside an hour or two to just spam low lvl spells to get their casting skills maxed as some casters seldom use certain casting types

[Vexor888]

What Fox said about spamming spells. Also yes I think it gives you about 10% more mana efficiency.