Richard, the Only Boros

Richard, the Only Boros get +2/+2 and has first strike, haste, menace and lifelink for as long as it is the only creature you control and the only creature that is both red and white on the battlefield.
"I may be the only one of the Boros legion here but that won't stop me from bashing your head in Azorius, Dimir, Rakdos, Gruul, Selesnya, Orzhov, Izzet, Golgari or Simic scum!!"
- Richard, the Only Boros