DaedalusX51
Explorer
I like the basic setup of kits having an at-will capability, a bonus Action ability, and a reaction ability but I feel that some additional balance and polish is needed. Also, have you looked at the 4e knight or skater for inspiration at all. They utilized at will stances that affected how they fought in combat and gave them round by round decisions to make. Perhaps turning kits into stances would work better overall.
Here are some ideas:
Dancing blade stance
While in this stance you gain the following abilities:
- Opportunity attacks against you are made with disadvantage.
- As a bonus action, you can move a distance up to half your speed.
- When an enemy misses you with an attack, you can move up to 10 feet. This movement doesn't provoke opportunity attacks.
Mountain hammer stance
While in this stance you gain the following benefits:
- When you hit a creature with a melee attack, you may push that creature 5 feet.
- If you hit a creature with a melee attack on your turn, you may attempt to shove that creature as a bonus action.
- When a creature attempts to grapple you, you may use your reaction to make a melee attack against that creature.
You can only have one active stance at a time and switching stances would require your bonus action.
Something like that.
While I really do like your ideas, I think I'm going to see how slight changes to the Battle Master go over in play before I get too far into this.