I think it would be because he wants Cloud to fight harder. It's possible that, as I originally thought, he just wanted to torment Cloud because he hates Cloud for defeating him, but there's still those strange, strange lines like "Well, that's up to you, Cloud" that seem to make very little sense in that scenario. XD

**nodnod.** I think it was a very nice touch. ^^

Trapped inside a creepy old tomb would definitely be fascinating. X3