When a Level 5 or higher Zombie-Type monster(s) is Special Summoned to your side of the field by the effect of a Zombie-Type monster while this card is in your Graveyard: You can pay 2000 LP; Special Summon this card from your Graveyard. You can only use this effect of "Vampire Grace" once per turn. Once per turn: You can declare 1 card type (Monster, Spell, or Trap); your opponent sends 1 card of that type from their Deck to the Graveyard.
Doesn’t need to inflict battle damage in order to activate its effect of sending a card from the opponent’s deck to the Graveyard.
Underwhelming stats for a Level 6 monster.
Special Summoning effect is very specific.
Cost to Special Summon this card is 2000 LP.
Seeing how much it would take to Special Summon this card from the Graveyard with its own effect, you might as well just run Call of the Mummy and avoid all of that: if the final objective is to activate Vampire Kingdom’s destruction effect, then this is probably the easiest way to get this monster out.
Best use you can make currently out of the “bleed” effect is to declare “Trap” to nullify Treacherous Trap Hole.
The easiest way to trigger Vampire Grace’s effect and Special Summon her from the Graveyard is to utilize Vampire Lord, Curse or Genesis, all of which are honestly underwhelming, if not borderline awful, cards. In order to get Vampire Grace into the Graveyard in the first place, we can simply use Gozuki since she is a Zombie-type monster: in the worst case scenario, we can just banish here to summon something better when Gozuki leaves the field and is sent to the Graveyard.
So far Vampire Grace is the best card to use in order to trigger Vampire Kingdom’s effect.