Killer Queen

Partner with Yoshikage Kira.
Haste, deathtouch
{r/w}: Target creature you control gains
deathtouch until end of turn.
{r/w}{w/b}{t}: Create Sheer Heart Attack, a 5/1 black Legendary Creature Token with indestructible.
{t}, Sacrifice three Hand Tokens: Destroy target creature.
...I wouldn't lose to anyone