on the combo example:

1. whack the marmot from front using WS1, + 20% damage!
2. immediately do WS 3 , DING! COMBO! +20% damage!
3. move behind the marmot
4. immediately do WS 4 , DING! COMBO 2!! Bleed!! + 25% Bleed damage!

well, it will make battle more interesting...but I must choose between additional damage or ogre's elbow drop then....