I threw this list together in about 5min but after a little playtesting I can already tell Zaraxa is awesome. I'm definitely gonna build this - dropping free hydras while casting quality spells is just so much value. There's tons of card draw and plenty of aggro to give your opponents something to worry about while you're searching for pemmin's aura or freed from the real.
If you'd like to playtest it on tappedout, here's my list: https://tappedout.net/mtg-decks/zaxara- ... 1586148304
Decklist
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