Heart of Kiran
Legendary Artifact - Vehicle
Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)
You may remove a loyalty counter from a planeswalker you control rather than pay Heart of Kiran's crew cost.
Interesting with fayden or baby jace. Really cheap and quite aggresive, and providing you can remove loyalty counters in your own turn, it's a fantastic defender.
I'm not saying this is going to see play for sure, but seems REALLY interesting, and I think it will actually see play, specially in decks with pws.