Quick test in arena, one grandmaster shield user with a featherwood shield against an unskilled opponent with a spoiler longsword.
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike Automaton 2 in the upper body with your feather wood shield, but the attack glances away!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You miss Automaton 2!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike Automaton 2 in the upper body with your feather wood shield, but the attack glances away!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You miss Automaton 2!
Automaton 2 charges at You!
Automaton 2 misses You!
Automaton 2 collides with You!
You tangle together and tumble forward!
The Automaton 2 stands up.
Automaton 2 strikes at You but the shot is blocked!
Automaton 2 strikes at You but the shot is blocked!
Automaton 2 strikes at You but the shot is blocked!
Automaton 2 strikes at You but the shot is blocked!
Automaton 2 strikes at You but the shot is blocked!
Automaton 2 strikes at You but the shot is blocked!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike Automaton 2 in the right lower leg with your feather wood shield, bruising the brass!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike at Automaton 2 but the shot is parried!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike at Automaton 2 but the shot is parried!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You miss Automaton 2!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike Automaton 2 in the right lower arm with your feather wood shield, denting the brass!
Automaton 2 strikes at You but the shot is blocked!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike at Automaton 2 but the shot is parried!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You miss Automaton 2!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike Automaton 2 in the left lower arm with your feather wood shield, denting the brass!
Automaton 2 strikes at You but the shot is blocked!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You miss Automaton 2!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike at Automaton 2 but the shot is parried!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You miss Automaton 2!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You miss Automaton 2!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike at Automaton 2 but the shot is parried!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike at Automaton 2 but the shot is parried!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You miss Automaton 2!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike Automaton 2 in the left upper arm with your feather wood shield, denting the brass!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You miss Automaton 2!
Automaton 2 strikes at You but the shot is blocked!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You strike at Automaton 2 but the shot is parried!
Automaton 2 strikes at You but the shot is blocked!
You counterstrike!
You miss Automaton 2!
Automaton 2 strikes at You but the shot is blocked!
Automaton 2 strikes at You but the shot is blocked!
Automaton 2 stabs You in the right lower leg with its adamantine long sword, fracturing the iron!
You are caught in a burst of steam!
You are caught in a burst of steam!
You are caught in a burst of steam!
That's like 30 blocks before the shield user got tagged. Using fresh fighters and a shield of the same material as the sword, it took slightly longer before the first stab got past the shield but with a sample size of two that could mean anything. This time around, for instance, the sword user got bashed in the hand a few ticks in so that may have slowed him down.
If material mattered, the sword would have gone through the wooden shield like it wasn't there.