Brova and Sysa, Kouldr Exiles

Eminence —Spells that target you and/or Brova
and Sysa, Kouldr Exiles cost {1} less to cast.
Deathtouch, menace, haste, dethrone monarch
When Brova and Sysa enters the battlefield,
target opponent becomes the monarch.
Whenever a creature you control attacks the
monarch or an opponent with the most life, it
gains first strike until end of turn.