Champion Concept. The Argonaut

I don't have a name for him because I suck and thinking of names. Also i wont put down any damage numbers because I don't know what would be balanced.

This Champion would be like an underdog that everyone underestimates. Someone who is very humble and just want to help people no matter the cost. If anyone has feedback i would love to hear it.

Passive (Endurance) This passive will add different bonuses at lower amounts of health. 75-100% this passive dose nothing 50-74% Bonus MR and armor 25-49% Bonus MR, armor and attack speed. 10%-24% Bonus MR, armor and attack speed, Bonus tenacity and health regen. 1-9% Passive would do nothing again.

These next 2 abilities I'm thinking of have work like Udyrs stances, how they get a certain bonus when you activate them for a second or 2. to make it more beneficial to switch back and forth.

Q (slash/Heavy swing) (offensive stance) While in this stance The Argonaut has lower MR and armor, but higher Ad. His first Auto attack after changing to this stance hits harder. And each auto attack builds up a buff ill call "battle flow" for now. Once you have 4 stacks of Battle flow you can activate Q again for a heavy attack or activate W for a Perfect block.

W (Block/Perfect block) (Defensive stance) In this stance you cannot auto attack but in return you higher Mr and armor. While in this stance the first attack that hits you is blocked by 50% and each attack after by 25% and you move 5% faster. But if you have 4 stacks of "Battle Flow" you will Block the first attack completely, then the next by 50% and then every attack after by 25%

E (Protect/tackle) While in Offensive stance this ability will tackle a target champ, stunning him and The Argonaut for 1 second. While in Defensive stance this ability will rush to a target ally and snap to them, auto following them for a few seconds and all damage the target ally would take is redirected to the Argonaut.

R (Heroic Moment) This move would deal more damage the lower the Argonauts health is. You would select a location and rush to that spot dealing damage based on your own missing health and again to who ever is at your target location. this ability would break cc when cast but cost some health to do so but cant kill you if you are already lower then the normal health cost.

I guess it goes without saying he would be a fighter/tank I think this kit would make for some fun play style and plays. Again if anyone has any ideas or advice i would love to hear it.