Hoid, King's Wit

When you are reduced to 10 health or below, or
when another planeswalker you control dies, you
gain an emblem with "At the beginning of your upkeep, you may transform Hoid, King's Wit."
You must not trust yourself with me. If I have to
watch this world crumble and burn to get what I
need, I will do so. With tears, yes, but I would let it
happen.