That would be the worst match-up ever, as Roy was actually hanging by the fact of his poison attack working on the guy.
From the first attack he had landed on the guy he had inflicted him with his poison, so now was about the time he felt the paralysis effect of the poison.
Normally a high Rank 4 Warrior would feel the effects of his poison in about 3 minutes, while a mage of the same Rank, as long as he wasn't a poison mage like him would feel it in 2 minutes and a half.
From the first attack until now, Roy had kept account of any second passing, and he was quite sure that 180 seconds had passed until now. In fact, this was the 192 second.
So this guy should have been paralyzed since 12 seconds ago, and yet he was still acting in full swing. For that reason, he couldn't help but think that he might really possess immunity just like himself.