sitting in a game with 250 armour

Yeah buying a single armor item + tabi makes you immune to a fed as fuck Trynd. It makes sense if you dont think about it

you either have less than 1k hp or lying

You need some health with that armor, 250 armor isn't gonna matter when you have and Plus Tryndamere usually requires 2-3 people to take him down depending on your team, with your team comp he should've been completely useless with Malphite, Ryze, Poppy, and Maokai.