Hey i was lookig at the engine of the gods and it says once a turn you choose an effec and one says choose any lore and cast spells can this be a different lore each turn or do you pick one for the whole game?
Firstly, the power that the Engine can use is not "cast spells," it is that all spells in the chosen lore have a casting level of one less than normal, you still need a wizard who knows the spell to attempt to cast the spell. Secondly, Yes you can choose a different lore at the start of each friendly magic phase, the only rule is that multiple EotG must choose different lores. So your EotG could choose Life one turn to help the Slann and Heavens the next to help the skink priest on the EotG.
Also if i choose to lower the casting value of life spells and my slann casts a spell is it cOnsidered irrisistable?