Yvuien, Resolute General

As long as this creature has First Strike, all other soldier creatures you control have First Strike, the same is true for Haste, Lifelink, Double Strike, +1/+1, Vigilance, Flying, Trample, Hexproof, and Deathtouch.
{1}{w}{r}: Yvuien gains your choice of Lifelink, Haste, or First Strike until the end of turn.