Alas, Colin's plan was a completely overt scheme.
If Colin was merely a First Rank Advanced Wizard capable of summoning a Second Rank Basic Level Fire Element,
then even if Joyce did not take the Mercy Potion, his chances of winning would have been at least seventy percent,
taking the Mercy Potion, it would be a hundred percent... the absolute gap in strength eradicated any possibility of a miracle occurring.
However, Colin was a Second Rank Wizard.
At least a Second Rank Basic Level Wizard.
Otherwise, if he had cast so many cross-rank witchcraft spells, the magic power inside him should have been exhausted by now rather than him appearing so effortlessly as he did!
Moreover, Colin could even summon a Fire Element almost at a Second Rank Advanced level.
Thus, the gap in their powers was instantly reduced to almost negligible.
So, even though Joyce had realized Colin's plans by then, he had no power to resist.