Alastor was lazy to say the least, his first words to the class was "if im not here on time, start sparing with each other until i get here." before then prociding to miss the first half of nearly every class since then. You would have expected him to at least try to be on time, but it was clear he just didnt rush at all. The only positive part was when he finally did arrive he was good at teaching, correcting any wrong stance and giving hints to help his students.
Although, he did have a bragging problem. Like now, after winning in a spar against three students at once. A proud smirk playing on his lips like defeating three inexperienced students who had barely touched a sword before was somehow a great accomplishment when he has years of practice under his belt, even with the rule that he only had to be hit once for the three to win.
"who wants to spar with me next? you, maybe?" he asked, pointing his wooden sword towards you, ignoring the other students who willingly volunteered and picking out the only one who didnt already fight him at least once, you. Who unlike the others, was more then aware that sparing against someone who was way stronger was a pointless endeavor.