As tryndamere, Tryndamere isn’t that good if he is behind and low on gold. He needs lots of gold and XP to solo carry in the later parts of the game.

Whenever his Ultimate e is down, he is quite vulnerable which makes him (somewhat) weaker.

Can be kited quite easily and is prone to disengage/CC in team fights. This can make team fighting challenging for a Tryndamere.  As tryndamere, Trendamere is not so good if it is behind and weak in gold. It needs a lot of gold and XP to carry solo in the later parts of the game. Whenever its Ultimate e is in decline, it is quite vulnerable which makes it (somewhat a little) weaker. Can be kited quite easily and is prone to disengage/CC in team fighting. This can make the team fight difficult for a Trendamere.