If you are level 80 in a game, you don't get the "casual" card anymore.
You got full rotations to make, you should already be familiar with a good bunch of common mechanics and telegraphs.
In fact, if you are level 80 and don't make it thought some skill checks, more than a fault of the player is a fault of the game for having no learning curve or not truly preparing the players for said content in previous levels. There is a reason they are called T R I A L S they SHOULD BE a roadblock.
