This is kind of confusing... And the upped is ridiculously OP, unless you mean it only reflects spells.
Even then, compare to jade shield.
Jade shield would reflect ALL spell damage. This card only reflects at most N. So to deflect a lightning bolt with this, you would need 5 of these in play (5 cards and 10
quanta) compared to a single Jade shield ( 7
and 1 card). So if it were limited to spells only, it would be pretty severely UP I think.
As it is here, I do agree the ability could be quite powerful, but note that the more damage you set the shield to reflect, the higher the threshold for zero reflection. I.e. if you make it reflect high damage to deal with heavy hitters, you leave yourself wide open to smaller attackers.
For instance, if you wanted to use it maxed out (6 points) to stop an unburrowed shrieker, as soon as the shrieker burrows, the shield would become useless.
I do see that the upped cost may be a bit low still so I will be bumping the cost on it.
To put balancing in perspective, take Titanium shield. It blocks 2 damage for 4
. This shield upped reflects 1 damage (probably be 3 or 4
). In terms of damage advantage, 1 reflected point is worth roughly 2 points of reduction. So they are on par there... But, whereas titanium shield can block creatures with 1 attack power, this shield would let them right through.