Which ones do you choose?

Mantheon, Graves, and Jayce.

Because you know, they're sexy.

Ahri, Miss Fortune, Katarina
...
Wait, where are we going?

Jarvan
Ashe
Olaf


Gotta stay in theme.

Riven, Soraka and Maokai

Riven because she's Riven.

Soraka for healing and she probably gets along well with elves.

Maokai because I'm willing to bet he knows Treebeard.

TF, Evelynn, and Shen.

Send Evelynn in to place a ward down, teleport to it, then call in TF and Shen when the *** gets real.

Karthus, Twisted Fate, and Zilean.

Karthus presses R. Collect millions of gold coin via TF passive. Zilean ult for in case friendly fire is on.

Sure Karthus might not share said gold, but it makes the treck into Mordor a fair bit easier.

Vi
Caitlyn
Jayce

For Piltover!

Anivia....because you need a big ass eagle if you're going into Mordor

Veigar because you also need the bearded wizard who has the ring

Gragas could pass for an oversized dwarf, and maybe Varus for your elf-like archer...so one of those two could be the last choice