Dual-class Heroes

[Bagyorath IV]

Here is my idea for new heroes: Dual-class heroes, which means heroes who belong to two classes. In other words, they give access to a wider variety of cards in one deck, because you can include cards of, say, the Rogue and the Mage class.

Examples:

Luna Silverpelt
Shadow Wulven + Priest
3: All Wulven allies are healed 3 damage
"The song of her howling gives strength to our people."

Red Mist
Human Ninja (Rogue + Mage)
3: All cards played this turn are placed face-down on the board.
(Face down cards are turned around after they are used the first time - when allies attack or are attacked, when an item is used etc.)
"When you can see him, you are already dead."

Ahruman
Shadow Bishop (Mage + Priest)
4: Return target spell from your graveyard to your hand
"Now I am the master."

Silent Eye
Shadow Ninja (Rogue + Mage)
5: Reduce opponent ressources and increase your own ressources by one each.
"I am merely waiting for you to defeat yourself."

Thalwyn Whitecross
Human Paladin (Warrior + Priest)
3: Armor you wear gains +1 defense and durability
"Stand back, heathens."

Garan Greenstaff
Human Druid (Hunter + Mage)
4: Friendly allies gain +1 attack and ambush for one turn
"The fierce anger of the wild, feel it!"

Sparkmother
Shadow Elemental + Priest
3: Summon Ghost Spark
(This puts a spark ally on the board without playing the card. If this spark is destroyed, no card is put in the graveyard)
"She is the source from which we are born."

Eric Thundersson
Human Barbarian (Warrior + Hunter)
3: Attack an additional time this turn before you are exhausted. (EDIT)
"Graahhhh!!!"

Lady Sarthena
Human Bishop (Priest + Mage)
3: Friendly allies cannot be targeted by spells and abilities until the start of your next turn.
"No spell will break my sigil, or my will."

I know new heroes won't be coming any time soon, but that shouldn't keep us from throwing around ideas.

The idea here is to open the game to new deck options without increasing the number of cards or adding new classes or factions. Having more cards to choose from gives these heroes an advantage over the current heroes, but not by much - after all, you still need to find the right combination between, say, a Mage card and a Priest card to gain a synergy advantage.

This can be balanced by making their shadow energy abilities a little less good, or more expensive. The goal is to make these heroes good enough that you want to play them for the new options they offer, but not so good that nobody plays the current ones anymore.