Tryndamere now does 1.35 ad damage on a crit rather than 2.0 ad damage on a crit
Also, he gains a 1% chance to crit for each point of fury, from 0 up to 100. Additionally, he converts all crit chance from items into 2% bonus crit damage.
So what does that all mean?
- At zero fury he has zero chance to crit regardless of his items.
- At full fury he is guaranteed to crit on every hit, but the damage he does is dependent on how much crit chance giving items he has bought.
- His ability to cheese lanes early with a string of lucky crits is no longer a thing
- Conversely, he can't lose lane because he was unlucky and managed to not crit one time in an early skrimish
- He is far more dependent on fury late game, and since he can't crit with zero fury he can't build it anywhere nearly as quickly, which widens the windows in which he is vulnerable.
- His total possible damage at full fury increases by quite a bit if he buys a lot of crit chance gear, since he converts it into crit damage.
#Item example:

Without these changes provides him with a 55% chance to crit for 2.5 ad at zero fury, and a 90% chance to crit for that same amount at full fury
With these changes, those items would provide Tryndamere with a 0% chance to crit at zero fury, and a 100% chance to crit for 2.95 ad at full fury.
In other words, his damage output at zero fury decreases by 45% and his damage output at full fury increases by 26%.
Beyond this, Tryndamere without these changes would want attack damage, armor pen, and attack speed to balance out his high crit chance since he may overcap on crit if he buys any more.
Tryndamere with these changes could opt to make himself even more dependent on fury by buying more crit chance, giving him more total damage at full fury but providing no fall back damage if he has zero fury.
