Gideon's Legacy

Enchant planeswalker that is not a Gideon planeswalker.
Enchanted planeswalker gains the additional
loyalty ability of "+1: Until your next turn, this planeswalker becomes a 4/4 soldier creature with vigilance and indestructible that's still a planeswalker."
Whenever you attack or block with enchanted planeswalker, you may put a loyalty counter on it.