Masked Check: Increases, ah, Chess-elemental attacks if the character scores, ah, a critical hit. In addition, whenever this character scores a, ah, Critical Hit, he/she also, ah, gets a second turn that he/she can, ah, only use the Attack, Defend, and Reload commands, along with, ah, context-specific commands. Moreover, ah, if the character is wearing a mask of any kind, be it equipment or appearance, the character's first attack in combat will, ah, always be a Critical Hit...
I, ah, think "Masked Check" sounds neat
Chessboard of Eternity: the character's, ah, non-Chess-elemental attacks / moves / spells are changed to Chess-elemental.