Trundle is just a better version of udyr
udyr passive: spam abilities to get ms and attack speed trundle passive: extra sustain udyr passive requires the spamming of abilities to maintain the attack speed and ms, and doing so without blue is very hard, because to top and bot jg u walk through lane and lose extra mana regen, forcing u to stop casting if no blue and lose passive, so passive does nothing and when ur in the new jg ur oom and its harder to clear/sustain when ur oom, and when you need to gank while you're close to oom, you can't even cast more than 1 ability after going in because u dont have any mana trundle passive amped by his w and allows him to clear almost full hp his q, does extra damage and takes enemy attack damage away udyr q: does extra damage every 3 autos and upon activation trundle q does less damage than udyr but he takes damage away from enemies and his q acts as a auto reset allowing him to win most skirmishes and clear camps taking less damage, outclassing udyr's pure damage udyr w: small shield and vamp every 3 autos trundle w: gives ms, attack speed, and extra healing in a range, basically like udyr vamp and his e movement speed combined and his tiger attack speed too in just 1 abilitiy trundle e: pillar that can be used to block exits in jungle, knock up enemies, and slow them udyr e: stun the first enemy autoed trundle e far outclasses udyr because trundle does not need to be in melee range to knock up/block and slow enemies, but udyr needs to enter melee range to do so, and you know what happens to bruisers that get in melee range of a squishy in a teamfight, if they are not fed enough the enemy tank will cc them and the squishy will kite udyr to death, while trundle just gets to cast his cc ability from a safe range and be useful without taking risks udyr r: phoneix stance, terrible if already going tiger trundle r: trundle steals tank stats udyr r is absolutely useless because phoenix stance sucks in jungle compared to tiger, and riot made it so u could get 6 levels in every stat so not leveling R would be wise, although 6 lvl points comes after udyr hits lvl 15, and by that time the game is usually decided and those skill points won't make any difference to the game (most games end before 35 minutes now, with this new 4 drag system, and udyr's 6 lvl after 15 don't matter at all) trundle r gives u an actual ult so u can teamfight, and you can sap the enemy tank to get alot tankier so you can engage, with you stealing up to double the initial amount stolen. I played a few games of trundle and it felt so good to stay full hp, never oom, and have much more tools to gank safely with e, and have a real ult for teamfights than it was to play udyr, constantly going oom, getting out ganked by enemy jg early game, getting outfarmed, getting out objectived because my champ can't compare to meta. in my opinion, udyr problems could be fixed if his passive was changed. please chance udyr passive to something useful, not something that requires u to go oom spamming your abilities and u lose it once u go oom.