mtg all planeswalker cards Magic The Gathering - Nicol Bolas, From the Conflux set. 10 MTG Assorted Planeswalkers -

Creature - Vedalken Guest Vrondiss, Rage of Ancients Enrage Whenever Vrondiss is dealt damage, you may create a 5/4 red and green Dragon Spirit creature token with "When this token deals damage, sacrifice it." Whenever you roll one or more dice, you may have Vrondiss deal 1 damage to itself

Its not a particularly strong effectgiving your creatures +1/+0 for 3 mana is a tough sellbut it does have one major thing going for it

Hint of Insanity will virtually never hit anything in non-Commander play, and will actually hit nothing in Commander games

that's puzzling

Since there are already tons of Young Pyromancers, Guttersnipes, and all the other uncommons in the deck out there already, adding more of them to the pool will suppress their prices