Her Commander Ninjutsu ability allows you to put her onto the battlefield from the command zone for just two mana by returning an unblocked attacker to your hand
It is in that middle ground where you want to play a comparable power six drop that you have significantly more chance of just casting or you want to play something utterly obscene that costs eight or more mana instead
(When it dies, if it had no -1/-1 counters on it, return it to the battlefield under its owners control with a -1/-1 counter on it.) Illustrated by Ron Brown Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
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What sets this card apart is that while Azula is attacking, each spell you cast is copied, so Azula is an excellent storm enabler when you can copy rituals, cantrips, Frantic Searches, and the like
Julius will certainly be hit with removal spells if your opponents have anything to say about it, and occasionally regeneration will help him survive
