Did I say the sentence correctly (with the cases and all)? I'd be surprised if I hadn't made any mistakes :P
No mistakes, although the sentence will sound a little better if you erase the last four words.
Wait, is that two с- prefixes coalescing?
Also, where is the stress supposed to be?
The root of verbs создать/созидать is зд/зид . Зид is an old Russian word meaning "a wall" which is no longer used. The same root or its variety -зод is found in the words здание (building), мироздание (a synonym of вселенная - the universe ) and зодчий (an architect, a builder). The prefix со- replaces с- before a cluster of two or more consonants, but also occurs before some roots that don't start with such a cluster.
If we are talking about the masculin form of the past tense, it only does so in this verb. We say собрАл, соврАл, согнАл, согнУл, содрАл, сожрАл, созвАл, сознАлся, соткАл, согрЕл, созрЕл, сомлЕл, сопрЕл, сострИг etc. However, in some passive past participles the stress falls on the prefix: собранный, согнанный, содранный, созванный, сотканный, созданный