While true, magic worked. However, Eldrian soon found a problem even in using magic. He could manifest his spells just fine, keeping control of them, that wasn't as simple. This was especially true for higher tiered spells.
The salamander-drake creature shrugging of Eldrian's spells told that story clear enough. Not to mention that half of Eldrian's spells missed. Ice seemed a terrible match against the creature. The poison acid it spewed was easily capable of melting it. Fire, did little to no damage.
Earth and wind were the most reliable. However, Eldrian wasn't as well versed in them. Wind he could produce relatively strong spells, thanks to his flight training, earth, however, Eldrian had to fall all the way back to spells below Tier 5.