It also at least adds a chance that you take out your opponents threat since you already know your blocker will be destroyed
The value of X is calculated only once, as The Lord Master of Hell's ability resolves
He wants you to be making Blood Tokens, which are slightly less effective Clues, and then using the Blood to summon your creatures directly from your hand
This comes via her ability where she does combat damage to a player
Neither mode is particularly impressive, but pairing both on a single card makes it an interesting silver bullet for decks that might need answers to threats they cant otherwise handle, like Ketramose, the New Dawn
Cards like Arc Trail and Dromoka's Command which are some of the more common removal spells to get two for ones with at two mana are unlikely to hit high value targets and are both rather dependent on the right situation