Shinji Ikari

Unstable 3 (Shinji Ikari enters with 3 stability counters on it when a creature dies
while Shinji Ikari is untapped remove a stability counter from Shinji Ikari when the last stability counter is removed Shinji Ikari becomes Unstable and must attack each combat if able.)
Once per turn if Shinji Ikari is Unstable you
may cast a legendary spell without paying
its mana cost.