Darkmoon Cards
There are four sets of card decks which can be turned in for trinket rewards. To collect a set you must find cards 1-8 for each deck. The cards are blue (rare) drops.

Darkmoon Card of Heroism - Equip: Sometimes heals bearer of 120 to 180 damage when attacking an enemy.

Ace of Warlords - King Gordok
Two of Warlords
Three of Warlords
Four of Warlords
Five of Warlords
Six of Warlords
Seven of Warlords
Eight of Warlords

Darkmoon Card of Maelstrom - Equip: Chance to strike your melee target with lightning for 200 to 300 Nature damage.

Ace of Elementals - Lord Incendius, The Windreaver, Baron Charr, Princess Tempestria, Hydrospawn, Avalanchion
Two of Elementals
Three of Elementals
Four of Elementals
Five of Elementals
Six of Elementals
Seven of Elementals
Eight of Elementals

Darkmoon Card of the Twisting Nether - Equip: Gives the wearer a 10% chance of being able to resurrect with 20 health and mana.

Ace of Portals - Darkmaster Gandling
Two of Portals
Three of Portals
Four of Portals
Five of Portals
Six of Portals
Seven of Portals
Eight of Portals

Darkmoon Card of the Blue Dragon - Equip: 2% chance on successful spellcast to allow 100% of your Mana regeneration to continue while casting for 15 sec.

Ace of Beasts - The Beast
Two of Beasts
Three of Beasts
Four of Beasts
Five of Beasts
Six of Beasts
Seven of Beasts
Eight of Beasts