Mighty Crusader Expertise is a heroic-tier feat available to adventurers proficient with holy symbols. It was introduced in Dragon Magazine article Tools of Two Trades, for adventurers specializing in two weapon or implement groups.[Dr402]
This expertise feat gives a +1 feat bonus to weapon attack rolls made with any two-handed melee weapon, and to implement attack rolls made with holy symbols. The bonus increases to +2 at 11th level and +3 at 21st level.
While wielding a two-handed melee weapon, ranged and area attacks made with a holy symbol do not provoke opportunity attacks.
It is considered a good choice for characters relying on two forms of attacks.