Tryndamere's passive discussion

Tryndamere right now doesn't have the nuking power of veigar or the sustained damage of yi. He has a little survivability, but it's not like he's rammus. We could give him a new , perk, some reason to pick him if we reworked his passive. How about if tryndamere has 100 (max) fury, his E gets a 90% slow and his critical strikes get a 1 second / 2 second and 3 second stun at levels 1 9 and 13. Tryndamere, is already gimped when at max fury because his auto attacks and spin can't get any more fury, there is no overcap. This will give Trynda more complex, demanding and immersive gameplay decisions, and make maintaining vs spending that max fury much more meaningful. Also, to avoid making tryndamere OP, we could shave 3 base damage, armor and MR.