Rolf, The Braveheart

Flying, Lifelink, Double Srike
If Rolf, The Braveheart or another creature you control would die you may roll a d20 instead:
1-8 — The creature dies.
9-14 — The creature gains Regenerate.
15-19 — The creature doesn't leave the
battlefield and gains a +1/+1 counter.
20 {line} Place an Indestructible counter on that creature instead.