Mass effect for me has two options before it:
1. Cost 7
and scarifice Mass effect all you creatures gain Momentum +1|+1 til end of turn
2. Cost 7
Spell: All your creatures gain Momentum +1|+1 til end of turn
Number 1 is so you can play it whenever you want and wait to activate it. Number 2 is just a spell. i gave it +1|+1 so a) you can attack better with small creatures
b) so they don't die of poison that turn if they are on 1 Hp and posioned.
Expel: interesting Card with this ability you could really destroy someone espicially if you have only pillars out. i would say it shouldn't affect Weapons/Shields but that is just me. As icybraker says it goes towards OP and needs more balancing. Maybe it deals 1 damage to all your creatures as well (not the opponents)
Mythic: very cheap for what it can do. Maybe lower the Hp to around 2-3 so it is targetable by other creatures or weapons. Cost isn't too bad but you can play this on the first turn if you have only 2 Quantum Towers in your hand thus destroying any chance of the opposing player getting creatures espicially if you leave the Hp at 6.
As to multiple abilities that is fine but remember you can only have One Passive and One Active ability (Devourer has Passive (devour Quanta) and Active (burrow)).
Other does need some more creatures etc as we keep saying but maybe this needs a little more balancing.
Good work though and the images aren't bad. Glad to see the art.
Scyther
