SO what are Cassandras better moves? What should i be using to poke and start an offense?
236B should put fear into your opponents minds, it is an excellent punish with RO properties.
236AB is a really, really good compliment to 236B.
AA is quick and good the ABK string is good for winning a round/match,
2A is 2A
BB and BdelayB, B6B, and B6 is a very simple useful mix up good way to mess with your opponents wake up.
BK buts your opponent into a FC state causing a nice little tech trap.
66K or 3B is a good simple launch into 236B.
6B is a really good poking tool, but very linear.
66A is a fast mid horizontal, 'nuff said.
88AA is a H/M string that does a good job of stuffing people who are trying to dance away from you.
4K is her butt, and a pretty nice butt it is.
66B+G is her primary throw threat because you get a follow up attack 44B+K, this is also the best way to convince your opponent to duck because frankly her low game isn't all that strong.
22_88B is can be charged to guard crush, it has serious RO potential on it when it hits. When the opponent is waking up near the ring edge this move can be very intimidating.
WR A is nice, not great just nice.
I feel like Cassandra is just so simple, it can be dumb or boring at times. That said there are a quite a few match-up specific items that end up making the difference.