Ring of the Ocean's Depth Mana, Ring Water L1
2 0-2 Mage
Water Mage Only
"Once per round, this Mage may pay 1 less mana when he or she cast or reveals a hydro or aquatic spell. Enchantments only receive this discount when they are revealed."
-----------------------------
Echo of the Depths Horn, Instrument Water L3
12 q 0-2 Mage
Spawnpoint * Siren Only * Epic
"While you control a song enchantment, Echo of the Depths gains Channeling +1. During the deployment Phase, it may summon 1 water creature. If Echo of the Depths would be destroyed by an opponent's spell or effect, prevent that destruction, unless your opponent pays 2 mana for each song+ enchantment you control."
-----------------------------------------------
I can imagine Siren having some songs facedown just to be revealed after enemy tries to dissolve Echo of the Depths.
Chant of Rage Enchantment Psychic, Song Dark OR Mind L1
2 / X q 0-2 Non-Mage Living Creature
Dissipate 2 * Unique
Chant of Rage cannot be revealed during the an Action Phase, When Chant of Rage is revealed, place a Hate token on one of your creatures. During its activation, the enchanted creature must melee attack a creature with a Hate token. If it cannot then it most move towards a creature with a hate token, if possible. When this spell is destroyed, destroy a Hate token in play on a friendly creature, if possible. X = enchanted creature's Level -1
-----------------------------------------------------
Song of Love Enchantment Psychic, Song
2 / X q 0-2 Non-Mage Creatures Holy OR Mind L1
Dissipate 2 * Unique
"Song of Love cannot be revealed during an Action Phase. When Song of Love is revealed, place a Love token on a friendly creature. Enchanted creature cannot make a melee or ranged attack against a creature with a Love token. When this spell is destroyed, destroy a Love token in play on a friendly creature, if possible. X = enchanted creatures Level -1
Putting Hate tokens on Blood Demon or other flying creature seems like a nice thing to do.
After seeing those songs I like that there's nothing that's similar to Warlock's Curseweaving ability but with songs instead of curses.
Swell Hydro Water L1
4 q 0-2 Non-Flying Creature or Conjuration.
ranged water 3 dice d12 7+ = Push Extinguish, Unavoidable
This attack with both Water rings is the most mana efficient attack spell. For 3 mana You get 4 dice and 5+ push which can give at least another 3 dice.
Whirlpool Hydro Water L3
12 q 0-1 Aquatic Terrain
Dissipate 3 * Epic
"All non-Flying, non-Aquatic creatures in the zone gain the Restrained and Unmovable traits. During the Upkeep Phase, they receive 2 direct hydro damage. Remove all Burn conditions from creatures damage from Whirlpool. Uncontainable creatures are not affected by Whirlpool."
I noticed that Whirlpool won't remove burn tokens from Hydro immune creatures.
I have similar issue with High ground terrain as it doesn't seem to block LoS if it goes through two opposite corners.