The Races that are strong versing each other are:
Human
-Human have a advantage versing Undead
-Human is even versing Elf
-Human is even versing Human
-Human has a disadvantage versing Orc
Undead
-Undead have a advantage versing Elf
-Undead is even versing Orc
-Undead is even versing Undead
-Undead have a disadvantage versing Human
Elf
-Elf have a advantage versing Orc
-Elf is even versing Human
-Elf is even versing Elf
-Elf have a disadvantage versing Undead
Orc
-Orc have a advantage versing Human
-Orc is even versing Undead
-Orc is even versing Orc
-Orc have a disadvantage versing Elf