How do these skills interact with eachother? Does Cleave's damage to other monsters than the main one as your duel goes up? What happens if you whirlwind after setting up a duel target already? Does your combo break up or will it keep going, provided you can manage to reach your target again before it breaks?
And what about Whirlwind/Charge with Cleave? If you whirlwind and hit a bunch of enemies around you, will the cleave proc on each of them to deal even more damage? As in if you have Maxed cleave and whirlwind on 4 enemies, will each enemy hit also make the other 3 get hit again? To end up with each enemy getting whirlwinded once and then cleaved thrice? Same question for Charge.
And what about Whirlwind/Charge with Cleave? If you whirlwind and hit a bunch of enemies around you, will the cleave proc on each of them to deal even more damage? As in if you have Maxed cleave and whirlwind on 4 enemies, will each enemy hit also make the other 3 get hit again? To end up with each enemy getting whirlwinded once and then cleaved thrice? Same question for Charge.