EDM Lux & Zac

In this composition, you have to play Slow Roll in level 7, until you hit the Lux 3-star. This composition is played with a tactic called Slow Roll, which mean that you will stop in some levels to roll above 50 gold, to find some 3-star units. Your main carry will be principally Lux, and then Zed and Ziggs. As for tanks, the items will go in Zac.

The best augments you can have are Cybernetic and Combat Augments. Also, Economy Augments are very nice as you will need a lot of gold to roll down for 3-star units (you should never have 3 augments of this type, one or maybe two are fine, but no more). Furthermore, the augments that give you items are not bad because you will have a lot of tanks, and the items that you may have left over from Ad and Ap can go in the Zed or Ziggs. Additionally, it is important to emphasize that because of being a Reroll composition, any augment that gives you experience should never be take (except Cruel Pact).

Lux best item is Spear of Shojin. The other two items need to be two damage items like Rabadon's Deathcap and Archangel's Staff or Jeweled Gauntlet. Tank items go into Zac. Other interesting items would be the Morellonomicon since reducing the healing of the enemies is very relevant, Thief's Gloves since it is generally good, and Ionic Spark or Statikk Shiv since reducing Magic Resistance is very good (it is advisable to put the Ionic Spark on Zac since he will be the unit that will tank most).

Lux needs to be on the other side of the enemy on the back row, since her ultimate deals damage to the furthest enemy. It is advisable to place the Illaoi tentacles on each side, near your tanks. Zac preferably needs to be on the same side of the enemy carry, as with his ultimate he bounce and deal damage to the 3 nearest enemies.

To play this composition, you will need a headliner with +1 Disco to have 4 disco along with a Guardian or Brusier at level 4 (at level 5 you would put Lux and then at level 6 you put Jax and a Sett for the Guardian or Bruiser you were playing).

At level 7, is when you fully direct your composition towards the final table. In this level, the best is to play 4 Bruiser 4 EDM and a Dazzler unit. You will roll above 50 gold to find Lux 3-star. It's highly important that you sell your early headliner before you roll, to have more opprtunities to find your final headliner. You need headliner Lux +1 EDM. If you can, any other 3-star unit is good, but the principal are Lux, and then Sett. When you have find Lux 3-star, you level up, and play 5 EDM.