Round 1
He was waiting for Kenzo to act, now he moves around the duo and swings his ax at the one on the right.
ax swing: 1d20 - 4 - 1 ⇒ (20) - 4 - 1 = 15
ax damage: 1d8 - 1 + 3 ⇒ (3) - 1 + 3 = 5
ax swing confirm: 1d20 - 4 - 1 ⇒ (16) - 4 - 1 = 11
His ax finds purchase on the infected and it bleeds from the slight wound.
Round 2
He swings again and completely misses as the ax shifts in his clammy hands.
ax swing: 1d20 - 4 - 1 ⇒ (8) - 4 - 1 = 3
ax damage: 1d8 - 1 + 3 ⇒ (7) - 1 + 3 = 9