Without thornmail; vayne will be doing ALL KINDZZZZZ OF DAMAGE.

It's been said, but I'll say it again anyway. FH or Omen. All thornmail was was armor and blowback. It countered ADC to hard with 30% return dmg because they would basically kill themselves. With FH... they attack much slower.. you have way more armor.. and you get bonus stats. With Omen.. they are slowed on hit and attack speed is still slowed. You get an active that will slow everyone (full AD team as suggested by one is instantly dead basically).

Yea thornmail was good.. but it gave tanks 30% of the other teams damage. as well as anyone else who bough it. The alternatives work to counter by actually slowing them instead of just killing them. This way your team still relies on its own damage output.

Cause Vayne or MF are tough to burst right . . .

Sry but you can't say they have mal and Galio to protect without saying what the other team might have ...

Let's say other team has Mumu and Olaf... or just OLAF. Pop ult ... pop ghost . . . carry vanishes.
Let's say they have Rengar too. Olaf + Mumu + Rengar. Mumu goes pop ult forcing team fight, Olaf pops all and charges carry, Rengar goes in stealth and burst carry too.

We got Galio and Malphite left vs Mumu + Rengar, and maybe Olaf, although he might be dead. But Vayne or MF are already LOOOOOOOOOOOOOOOONG dead.

EDIT: Just to get back on topic, I also don't understand why they removed it though ... but it ain't no big deal.

So what you're saying is that a team should be punish by having a carry and selecting 2 allies to protect their carry?

This is completely stupid.

Team composition is important, if you take 3 brawler and you're beaten because the other team took a carry and 2 tanks to protect her, well their team comp was better than yours and they are actually playing skillfully.

The game doesn't start when you're on the map, it starts at character selection. Having characters with abilities that fit well together should be rewarding.

1) Randuin's
2) Use the active
3)???
4) Profit