Seraphina Dracul Presence

Vampires you control have lifelink.
Legend rule doesn't apply to you.
Pay {b}{r} or 3 life: Create a Blood token.
At the beginning of your end step, if you own
ten or more Blood tokens, conjure card named
Lady Seraphina Dracul onto the battlefield.
Abilities of Lady Seraphina Dracul cost no mana.