Sarkhan, Consumed Soul

(flips from Sarkhan, Dragonbound)
Cumulative upkeep - 10 life (At the beginning of your upkeep, if this card is on the battlefield, put an age counter on it. Then pay the [cost] for each age counter on it, or sacrifice it.)
Flying, First Strike.
When Sarkhan, Consumed Soul or dies you lose
5 life then if you don't lose the game go to your starting life total.