Tier
Synergies
This comp runs the 9 Cultist synergy along with Kalista as the main carry. As such, you will want to reroll at level 8 to hit Zilean for 9 Cultist and to also look for Kalista 3.
Go for this comp if you have a Chosen Cultist and good items for Kalista.
Stage 2
Before Krugs
Level up to 4 early if you want to start a win streak. Level up to 5 to try and continue the streak.
If you're weak in the early game, you can opt to save gold and lose streak instead.
Stage 3
Before Wolves
At Round 2, level up to 6 regardless of your start. Put together the strongest team you can.
Stage 4
Before Raptors
At Round 1, level up to 7. Roll down to stabilize your comp if you are weak. Afterward, save up to hit level 8 and complete your comp.
Once you are at level 8, continue rolling or slow rolling for Kalista 3.
Of course, you will want to start out with Cultists. Tristana can be used to pair with Sivir later, but you can also use a unit like Zed for the early game.
Continue adding more Cultists. If you have enough for 6 Cultist, go for that, otherwise, add in a Duelist to pair with Kalista.
Before hitting 9 Cultist, you will want to fill out your team with other transition units rather than simply going for only the Cultists. This can be units like Duelists, Keepers, Assassins, etc.
Runaan's Hurricane
+15%
25
Rabadon's Deathcap
20
20
Guardian Angel
15
25