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Aspect of Hydra | Instant | | Target creature gets +X/+X until end of turn, where X is your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.) | Mark Winters
Audacity | Enchantment | Aura | Enchant creature
Enchanted creature gets +2/+0 and has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)
When Audacity is put into a graveyard from the battlefield, draw a card. | Rudy Siswanto
Experiment One | Creature | Human Ooze | Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Remove two +1/+1 counters from Experiment One: Regenerate Experiment One. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.) | Chase Stone
Gladecover Scout | Creature | Elf Scout | Hexproof (This creature can't be the target of spells or abilities your opponents control.) | Brian Valeza
Hero of Leina Tower | Creature | Human Warrior | Heroic — Whenever you cast a spell that targets Hero of Leina Tower, you may pay {X}. If you do, put X +1/+1 counters on Hero of Leina Tower. | Aaron Miller
Mistcutter Hydra | Creature | Hydra | This spell can't be countered.
Haste, protection from blue
Mistcutter Hydra enters with X +1/+1 counters on it. | Ryan Pancoast
Oath of Nissa | Legendary Enchantment | | When Oath of Nissa enters, look at the top three cards of your library. You may reveal a creature, land, or planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
You may spend mana as though it were mana of any color to cast planeswalker spells. | Wesley Burt
Fog | Instant | | Prevent all combat damage that would be dealt this turn. | Jaime Jones
Natural State | Instant | | Destroy target artifact or enchantment with mana value 3 or less. | Volkan Baǵa
