Well to get a little discussion rolling, one of the quirks of shields like the dissipation shield, and thus this shield as well, is that they will be stronger against small numbers of heavy hitters and much weaker against large numbers of light hitters.
This has to do with the granularity of the damage absorption cutoff.
For instance, when fighting a player using an unupgraded dissipation shield, creatures that deal 1 or 2 damage will actually drain more quanta per point of damage dealt because the dissipation shield absorbs at least 1
![Entropy :entropy](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/entropy18x18.png)
per attack regardless of whether that attack did 1 damage or 3 damage.
The situation here is actually amplified since the absorption threshold is at 5 damage. I.e. this shield absorbs 2 / 3
![Light :light](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/light18x18.png)
whether an attack deals 1 damage or a full 5. Moreover, there are many creatures which can withstand 1 or 2 points of damage in a turn but 5 points is an autokill for most creatures.
This gives a big bonus to decks which have creatures with high HP to ATK ratios since they will be able to batter down the shield with fewer losses.
So in a sense, this shield serves a roughly inverse role compared with Fire Shield.