Adriach, Lord of Battle

Vigilance, first strike, lifelink
Whenever 5 or more white creatures attack during combat, those creatures gain lifelink and vigilance until end of turn. After this combat phase there is an additional combat phase.
Whenever a white creature you control is dealt combat damage but doesn't die, put a +1/+1 counter on Adriach, Lord of Battle.
You cannot best him. Especially in battle.