Per combat - yes, you can cast as many spells as you have in your hand. But per combat Round (round lasts until all units make their move) you can cast only one. If you use any of statistic/ability/etc card that states to increase this limit, you may cast spell more than one during the combat Round
Can you cast more than one spell per fight?
Depends if you have knowledge or other cards that allow you to use second time spell
Per combat - yes, you can cast as many spells as you have in your hand. But per combat Round (round lasts until all units make their move) you can cast only one. If you use any of statistic/ability/etc card that states to increase this limit, you may cast spell more than one during the combat Round