Last month, I had a 5000 pts battle against the Eldar. We even fielded two Titans. We had agreed to allow special characters, so I opted for a historical battle and fielded Dante, Mephiston, Corbulo and Cleutin. My opponent had Kharandras and an Avatar.
In the first round, Mephiston charged the Avatar with his Red Grail-boosted 14" move. These two battled the whole game through, and Mephiston even succeeded in wounding the Avatar 5 times! Tough guy he is, especially with the Red Grail nearby.