Astral Aegis

Choose one —
• Regenerate target creature, then put two fade counters on it. At the beginning of your upkeep,
remove a fade counter from it. If you can't,
sacrifice it.
• This turn, the next time a source of your choice
would deal damage to target planeswalker you control, prevent all but 1 of that damage.
Sorcerer Supreme —If you control a Stephen planeswalker, you may cast this spell for {1}.