Demon of Time and Truth

Whenever Demon of Time and Truth attacks,
you may pay up to 3 life. If you do, put that
many +1/+1 counters on it.
{t}, Sacrifice Demon of Time and Truth: Take
two extra turns after this one. Activate this ability only if your life total is 1 or less.
"Of course I'm telling you the truth. How could I lie to you? I'm your best friend. I always will be. You need
me. I know what's best. Trust me."