Shadow Legion - Arcane

Shadow Legion expand their influence and begin to recruit from Zaun and Piltover.
After endless turmoil and escalating tension and conflict between Piltover and Zaun, Vi, Powder, Ekko and Caitlyn decide to join Shadow as way of rebelling against the system and being free from either.
Mylo, Claggor, Vander, Cassandra and Tobias Kiramman, Greyson and Silco where all killed which helped motivate Vi, Powder, Ekko and Caitlyn to leave the city and start a new. At the same time the Noxians began to further influence Piltover which only escalated hostilities.

Vi joins as a assault commander, whilst Caitlyn becomes a team leader and sniper, Ekko becomes an engineer and scout, and Powder (nicknamed Jinx) becomes a heavy weapons and demolition specialist. Graves and Infinitis gladly accept the four new recruits and put their skills to good use. It doesn't take long for the four to rise through the ranks.

After the four had departed, the situation in Piltover and Zaun only got worse, until finally it spill over into full civil war which ended up decimating both cities. The Noxian Army arrived to try and enforce its own order, but in the end, even that proved futile.
And it got even worse, as an Aether rift appeared and turned the thousands of dead into zombies, it was then that Shadow Legion decided to intervene. It gave them the opportunity to kill two birds with one stone; they could destroy a zombie outbreak at the same time they can remove a thorn in their side by eliminating Piltover, Zaun and Noxus's army.

They launch Operation Storm Siege, led by Caitlyn and Vi.

I don't have a model for Caitlyn or Ekko so they won't appear for now, but they are part of Shadow Legion.