The owner of this deck hasn't added a sideboard, they probably should...
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Put indestruct on the hydra, then start hammering him with intim bolt during your opponents turn: opponent can't attack and your hydra gets +6/+6. And remember, as long as the hydra has something giving him a non counter bonus(such as glory of warfare) he won't die from losing counters. I was thinking about putting giant growths in here so I can fireball him severely on my own turn. We'll see, please comment.
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Spidersilk armor might be good--keeps the Hydra alive, and gives it and all others reach. Another great card to combo with the Hydra is Predatory Urge.
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