He would definitely have confidence in his ability to protect himself.
If she really wanted to act out this plan, she must be prepared to face the attacks that Curtis had set up as his last defence if not, then she could forget any idea she had about getting towards Curtis.
But even with all these factors Rebecca still had confidence in her abilities to act out her plan as she still had some cards left that she hadn't played yet.
"Blood Storm!"
While Rebecca was plotting her next course of action, the sea of blood below her began to stir again as it quickly responded to Curtis's call
The surface began to bubble as numerous tornadoes of blood began to rise and head towards Rebecca at the same time. whilst this was going on Curtis pulled out yet another corpse and began to quickly recover the enormous amount of spirit energy he just spent
But now Rebecca knew his secret she wouldn't just stand still and let this happen