Xarkraqis, Bane of the Spark

Protection from planeswalkers.
{2}{u}{b}: Target planeswalker becomes an X/X colourless Avatar creature until end of turn,
where X is is loyalty. It is still a planeswalker.
Whenever a planeswalker dies, exile Xarkraqis,
Bane of the Spark and return him to the
battlefield under his owner's control with eight
+1/+1 counters on him. He gains Flying and
Trample.