Rider 2, Strength of Justice

Other Soldier creatures you control get +1/+0.
You may exert Strength of Justice, Rider 2 as it attacks. When you do, it deals 3 damage to target creature or player. (An exerted creature
won't untap during your next untap step.)
Partner (You can have two commanders if both
have partner.) If you control another Elemental Soldier you gain "{1}{r}{g}, {t}: Destroy
target creature."