The following concepts got in as the top 10:
No summoning sickness. (Swift)
Spell Miss Rate (Evasive)
Damage reflection. (e.g. - "Deal back1/3 of the damage you took last turn."
Despair - consume all of the creatures hp and add it to it's atk.
Recall: something that finds certain type of cards from your deck.
Unstable : chance to die each turn.
Conglomerate - Requires the sacrifice of other cards to play.
Traitor/Traitorous - belongs to the side with the most creatures.
Time Rift - Revert the target creature to its original stats. Can only target your own creatures.
Burden - The target creature's skill cost is doubled.
Poll 2 is up; you have 2 votes. Vote for your favorite card concept!