A: Original TLC Rulebook states that Champions and Boss Beasts/Criminals may not be displaced. This rule has since been since been removed (sometime in 2013). Now, the omission of this rule means that it is possible to Hurl/Seismic Hurl and Pull/Extreme Pull any unit.
All Skills may affect all Bosses, Titans, and Champions unless otherwise noted (a few Titans have exceptions).