Having been delayed my Codex (no-one in my flat share decided to answer the door this morning), I can't offer much.
Power Sword on the Warlord? Is this worth it, more so than just taking a Kiss?
Can't say what the Crescendo does for the Solitaire, but I would want to increase his Blitz assault potential.
The Death Jester... He is on his own? and he doesn't fit in too much with the rest of the Armies speed?