Cause i had not too much time, i decide to send my idea collection here. That are not my first ideas, but maybe i am not professional enough to bring an idea to a real card with the chance to become real ingame. So here are some ideas, (yes, based on "magic the gathering", but more fit for elements mechanics). I hope some interesting ones there. Maybe you can mail me and we can talk together about an idea...
Soul Brake (Enchantment)
The next from a hand casted creature dies immediately on the first turn. Mitosis, FFQ, Pharaoh, Deja Vu, Boneyard don´t count. Dead triggers happen (Vulture, Boneyard).
After the next creature died in this way, Soul Brake will be destroyed - stackable
Soul Barrier (Enchantment)
If your opponent cast a creature he lost 2 life. Count not creature abilities (FFQ...) or Boneyard.
Glimmer of Hope (Cast for Time)
Look at the top 3 cards of your library. Take one of them in your hand and discard the two others.
Shackles (Enchant creature)
The enchanted creature is stunned until the owner pays again the casting costs.
Cursed Power (Permanent)
Nobody can cast permanent cards, as long as Cursed Power is in play. Pay x at the end of your turn or Cursed Power will be destroyed. (like flooding)
Alternately: Every player have to pay 1 life for every permanent he owns. (with or without quanta generating permanents – or only the opponent pay life for permanents – but that seems too strong to me)
Illusion (Enchant Permanent)
The choosen Permanent becomes a random Pillar or Tower. (Does count only for 1 card of a stack or a single permananet.)
Repetition (Cast)
Return the target permanent card to its owner's library. (Top or bottom?)
Exchange
Switch the enchantment (or abilities) from 2 creatures. Or switch to permanents (from the owners)
Toughening Up (Enchant Creature)
The enchanted creature gains a shield that blocks 5 damage. For each damaged blocked in this way the creature gains +1 attack (or toughness)
Guardian
Creature with 1 / 3 and costs of 3 Light.
Pay 1 Light to prevent up to 3 damage to the target creature until your next turn.
Vision
Look at the top 3 cards of a person you want. Shuffle the library if you want.
Miraculous Healing (Enchant Creature)
If the enchanted creature would die it rebirth with the half toughness (for 1 turn?)
Solidarity (Enchant Creature)
For each damage dealt to the enchanted creature, Solidarity dealt the same damage to the creatures owner.
Dark Privilege (Enchant Creature)
The enchanted creature get the following ability:
Sacrifize a creature to prevent the enchanted creature from dying until your next turn.
Funeral March (Enchant Creature)
If the enchanted creature dies, the creatures owner have to sacrifize an another creature.
Death Watch (Enchant Creature)
If the enchanted creature dies the owner get damage equal to its attack and you gain life equal to its last toughness.
Quietus (Spell)
If the targeted creature gains damage this turn, destroy that creature. (include damage by walls)
Creature (kind of Mage?)
Creature with 1 / 2 and costs of 4.
Ability: Pay 2x – the targeted creature gains attack and toughness equal to it´s casting costs until your next turn.
Legacy (Enchant Creature)
If the enchanted creature dies the owner can draw 2 cards if possible.
Stone Warehouse (Spell)
You (and your opponent?) can see your next 3 cards. Take all Pillars/Pendulums and discard all other cards. (can be interesting with Reverse Time)
Forest Elemental ( Life creature)
Creature with 2 / 2 and costs of 4 Life. Ability: Sacrifize a life quanta producing permanent card. The Forest Elemental gains + 1 / +1 permanently. You can play this ability only one per turn.
Enraged Wombat (Creature)
Creature with 1 / 2 and cost of 4. If the creature is the target of an spell or effect it gains permanently +2 / +2.
Merman (Creature water)
Creature with 3 / 3 and costs of 4x. Pay 1x – the Merman cannot be the target of spells or effects until your next turn.
Quanta chains (Enchant Creature)
The owner of the enchanted creature have to pay 2 Quanta of the creatures color each turn or the creature dies. (like flooding)
Seer of xxx (Creature)
Creature with 3 / 2 and costs of 3x. The creatures passiv is: If the Seer of xxx dies draw a card.
Creature xxx
A creature with 7 / 5 and costs of 4x. Passiv: If you cast this creature, take a another of your creatures to the top of your library (or bottom?)
Energy Tapping (Spell)
Stun the target creature for 2 turns. The owner of the creature gets quanta equal to it´s casting costs.
Walking Stones (Enchant Permanent)
The targeted pillar/pendulum becomes a 3 / 3 creature and produce quanta every second turn.