So, what happens is a thing. 

GordothToday at 7:59 PM
!roll 1d20 - I roll for Galdari, as she initiates the action
GuildBotBOTToday at 7:59 PM
@Gordoth, :game_die: 1d20 → 16
GordothToday at 7:59 PM
!roll 1d20 - I roll for Orky, as he reacts to the action
GuildBotBOTToday at 7:59 PM
@Gordoth, :game_die: 1d20 → 14


 Meaning [@Lady Selune] manages to hit [@OrkytheOrc], because she is faster.

 Let's see if you can force the shield and hit Orky really hard!

GordothToday at 7:59 PM
!roll 1d20 - Rolling for Galdari, as she is the initiator. That's plus her strength,
GuildBotBOTToday at 7:59 PM
@Gordoth, :game_die: 1d20 → 16
GordothToday at 7:59 PM
!roll 1d20 - Rolling for Orky, that's plus his Endurance.
GuildBotBOTToday at 7:59 PM
@Gordoth, :game_die: 1d20 → 14

EDIT: 
The actual rolls are the following:
!roll 1d20 - Galdari
GuildBotBOTToday at 8:02 PM
@Gordoth, :game_die: 1d20 → 7
GordothToday at 8:02 PM
!roll 1d20 - Orky
GuildBotBOTToday at 8:02 PM
@Gordoth, :game_die: 1d20 → 18

 So Orky gets hit hard. He gets injured, the skin cracks and he starts to bleed, but the skull doesn't suffer much damage. It hurts, and he gets a little dazed. But he can react. [@Lady Selune] ; [@OrkytheOrc]