Anafenza, Abzan Champion

Other creatures you control have Outlast {g/w}{w/b}{b/g}.
Whenever Anafenza or another Soldier you control attacks, Bolster 2 (Choose a creature you control with the least toughness or tied for least toughness among creatures you control. Put two +1/+1 counters on that creature.)
Whenever Anafenza or another creature you control enters the battlefield, Bolster 1.