this card sounds bad at first but when you think about it you can halve the damage of a full field of fireflies permantently (not just 3 turns like dim shield )
Diashield can even block all the damage vs unupped Fireflies and 75% vs upped Fireflies.
Even if really 50% of Creatures hit, the damage will not be halved considering that there are mostly strong and less strong hitters on the field. Maybe you have a Lava Golem with 23damage and a Photon with 1 damage. If the Photon hit, but the Golem not your damage is almost completely blocked although you blocked only 50% of the attacks.
cute shiny Photons
Lower cost,but shouldn't the upgraded version do like 75% of missing?
I hate this Shield in such a way I started counting hits....
Its almost every time way above 50% about 60-70% and its annoying...
I dont even want imagine what happens with an Improved Dusk (75%).