Sarkhan Vol, Dragonsoul

Flying, Indestructible
Dragons you cast cost {2} less to cast.
When a Dragon enters the battlefield, gain 1 life.
{t}, +1 mana of any color for each Dragon you control.
{x}{r}{t}, "Banefire"
{2}{r}{t}, "Sarkhan's Triumph"
{u}{r}{g}{t}, "Temur Charm"
{b}{r}{g}{t}, "Jund Charm"
{b}{b}{r}{r}{r}{g}{g}{t}, "Violent Ultimatum"