The critic has arrived!

Shard of Knowledge - Good
Adds a very interesting twist to the game. I like how it could be used offensively as a pseudo-Momentum and also defensively if you have a reflecting shield up. A bit sad since it counters the card of its own element, Dimensional Shield, but meh. Love the bonus too.

Shard of Freedom - Decent
Would've been better with just airborne creatures gaining bonus attack power, although it kinda overlaps with the concept of Eclipse. Some space for creativity. Also I don't see a particular affinity to

, since there are tons of non-air airborne creatures.

Shard of Detachment -
BADOkay, the ability transfer part is ingenious... but the ability can only be used in a darkness deck.

Shard of Resilience - Decent
Good synergy with stone skin. However, You need 100 Earth quanta to reduce 2 damage for upgraded version, and you don't see that happening regularly.

Shard of Intuition -
BADHave no idea why this card even made it to here.

Shard of Determination - Good
A perfect card for the fire element, which makes me think it's a bit overpowered, especially the damage part.

Shard of Balance - Good
Intuitive, but... black Hole with this... ugh...

Shard of Restraint - Good
The 'plus 1 turn per

creature' part and the upgraded version itself seems overpowered. Good idea otherwise.
My vote goes to

.