Introducing Invulnerability HUD

[Janitor]

League of Legends added this new feature where I find to be awesome, because I had some trouble when going in a fight against Taric for example, I never knew when his ult is on or off. So I think this one is pretty much on time.

From the boards of LeagueofLegends official website,
Introducing Invulnerability HUD

Have you ever been sad when a big attack lands on its target only to find out they're invulnerable?
Have you wanted to know that the health bar you're about to lay into can't be moved?
Did you see the Taric Ult in the Ryze Champion Spotlight and wondered wtf?
Well, have we got the feature for you! It's Invulnerability HUD, (most likely) coming in Patch 6.18!

We've added a fancy gold border to champion's health bars when they can't be touched. In addition, we pulled a couple abilities that acted a lot like invulnerability and went ahead and made them fully embrace invulnerability. We're hoping this makes interacting (or not) with invulnerable champions a less frustrating experience. If we've bounced off that target please let us know in the comments below.

source

[Soduko]

If you're good at the game, you would realize his ult has been popped or not.

If you're bronze, you wouldn't know.

Just an added feature for Bronze + Silver players

[Janitor]

If you're good at the game, you would realize his ult has been popped or not.

If you're bronze, you wouldn't know.

Just an added feature for Bronze + Silver players

Plat2. I didn't get to play against Taric a lot therefore I never knew when his ult is popped or not. It's all about vfx and clarity.

[Raw]

I like this feature a lot, gonna be really nice on tryndamere.

[Janitor]

I like this feature a lot, gonna be really nice on tryndamere.

Tryndamere wont have it

We decided against altering Trynd ult - he's only invuln at very low HP, and he rapidly life-steals out of that state. Disco-invuln-hud wasn't a thing we're interested in inflicting upon the world.

[Thescruu]

ye had issues with Taric aswell when I played against him this morning. I personally hate anything that makes the game easier, but this makes sense.

[Raw]

Tryndamere wont have it

Dang that is unlucky that would have been really good :/

[Poseidon]

This is actually one of the nicest add-ons they've done in a long time. Better than all their text changes, and making jungle camps larger looking for sure.

[Hunter]

This is awesome in my opinion, honestly speaking.