well i like were you are coming from, but the answer to an op champ counter would have to be another op champ, the first champs that cometo mind:
#1 akali has the shroud to make her hard to hit, cant hit what you dont see, plus since shes not 100% invisible people dont think they need an oracle, she has great harrassment with her Q E and R with good CD so you dont have to worry about that, if he ultis hit W put it behind him then run into it, it slows down his retreat, and makes it hard for him to spin out his R runs out and then ulti.
#2 jax especially now with his 100% dodge,even if its timed it would help against tryn.
#3 xin has the toss to help him in 1v1, just play it right so you have the upper hand, tryn's are always turret diving and then hittng R and running, so stall him, get him down to low hp uner the turret, he hits R, you toss, he spins you jump to him he flashed, you flash, if he slows pop ur ulti and you win.
Or do something easy, make sure to focus him early game, since he is squishiest then, take him out over and over again and make sure he cant farm, as long as your build is made before his, your set.