Strange Romance

This spell cost -1 less to play if enchanted on a creature with Partner, Romantic, Angel, Vampire, or Dragonborn.

If there is another creature with Partner, Romantic, Angel, Vampire, or Dragonborn, activate this ability: Whenever enchanted creature damages a player or planeswalker,
draw 2 cards, then discard 1 card.
Bjorn and Vikter, angel and vampire, were inseparable. They tempered and emboldened the other.