Just some nitpicking hints from a grammar freak.
For special abilities, capitalize:
-card titles ("May band to Jezebel", "If The Garden Tomb is in play", etc.)
-specific card types (Hero, Evil Character, Artifact/Covenant/Curse, Fortress, Site, Lost Soul)
-the first word of each sentence (as per normal grammar rules)
-nationality identifiers (Assyrian, Canaanite, Egyptian, etc.)
-rank identifiers (King, Queen)
-Biblical books ("Ezra Hero", "Genesis card", etc.)
-Land of Bondage/Redemption
Do not capitalize:
-brigades (green, blue, crimson, good/evil gold, etc.)
-locations not mentioned above (hand, deck, field of battle, discard pile, Artifact pile (Artifact is, pile is not), etc.)
-identifiers not mentioned above (musician, magician, demon, human, royalty, involving music, etc.)
-general card types (card, character, enhancement, evil/good enhancement)
-game actions (discard, capture, convert, protect, negate, play, etc.)