Issac was suprisingly useful today in Final Destination on random match on Wi-Fi, its Psynergy hand took out all 3 enemies. :0
I hate Sonic; most hated newcomer and overall character in the game. However, Shadow is just... cool. Maybe the overall appearance of Sonic blurs my vision?
To get to the point, Chaos Control is useful. Why? It gives huge blindspots, and Luigi's B up goes to town on them. Sorta like Negative Zone, but stage-wide.
Isaac- I find the Move ability useful in flat stages. But it's mostly just because I love Golden Sun. I was hoping Isaac or Felix (The main characters from the two games) would be playable in Brawl. And I'm still waiting for a third in the series on the DS. The ending of Golden Sun: The Lost Age just left to much room for a sequel! WANT!!!
Custom Robo- This thing owns. The first time I got it, I was playing with a friend and he said "Hey, I didn't see you get the Smash Ball! What the **** is that thing anyways?!?" He was mostly confused why Ike's Final Smash was a flying robot owning everything in sight. Then he realised it was an Assist Trophy.
Excite Bike, Advance Wars, and Lakitu all own on small stages where the edge is blocked so they just bouncing back and forth. :lol: I recently discovered this in one of my custom stages where either end is blocked by a huge tower.
Shadow- As Kyle said, Chaos Control is extremely useful for charging up attacks.